696641 has 4 divisors (see below), whose sum is σ = 759984. Its totient is φ = 633300.

The previous prime is 696629. The next prime is 696653. The reversal of 696641 is 146696.

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 (696629) and next prime (696653).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-696641 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 696598 and 696607.

It is not an unprimeable number, because it can be changed into a prime (696611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31655 + ... + 31676.

It is an arithmetic number, because the mean of its divisors is an integer number (189996).

2⁶⁹⁶⁶⁴¹ is an apocalyptic number.

It is an amenable number.

696641 is a deficient number, since it is larger than the sum of its proper divisors (63343).

696641 is a wasteful number, since it uses less digits than its factorization.

696641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63342.

The product of its digits is 7776, while the sum is 32.

The square root of 696641 is about 834.6502261427. The cubic root of 696641 is about 88.6481500394.

Subtracting from 696641 its reverse (146696), we obtain a palindrome (549945).

It can be divided in two parts, 6966 and 41, that added together give a palindrome (7007).

The spelling of 696641 in words is "six hundred ninety-six thousand, six hundred forty-one".