694641 has 4 divisors (see below), whose sum is σ = 926192. Its totient is φ = 463092.

The previous prime is 694633. The next prime is 694649. The reversal of 694641 is 146496.

694641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (694633) and next prime (694649).

It is not a de Polignac number, because 694641 - 2³ = 694633 is a prime.

It is a super-2 number, since 2×694641² = 965052237762, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

694641 is a lucky number.

It is a nialpdrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 694599 and 694608.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 694641.

It is not an unprimeable number, because it can be changed into a prime (694649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115771 + ... + 115776.

It is an arithmetic number, because the mean of its divisors is an integer number (231548).

2⁶⁹⁴⁶⁴¹ is an apocalyptic number.

It is an amenable number.

694641 is a deficient number, since it is larger than the sum of its proper divisors (231551).

694641 is a wasteful number, since it uses less digits than its factorization.

694641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231550.

The product of its digits is 5184, while the sum is 30.

The square root of 694641 is about 833.4512583229. The cubic root of 694641 is about 88.5632348349.

The spelling of 694641 in words is "six hundred ninety-four thousand, six hundred forty-one".