696631 has 8 divisors (see below), whose sum is σ = 769104. Its totient is φ = 626880.

The previous prime is 696629. The next prime is 696653. The reversal of 696631 is 136696.

696631 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 696631 - 2¹ = 696629 is a prime.

It is a super-2 number, since 2×696631² = 970589500322, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 696593 and 696602.

It is a congruent number.

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

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121 + ... + 1186.

It is an arithmetic number, because the mean of its divisors is an integer number (96138).

2⁶⁹⁶⁶³¹ is an apocalyptic number.

696631 is a deficient number, since it is larger than the sum of its proper divisors (72473).

696631 is a wasteful number, since it uses less digits than its factorization.

696631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1361.

The product of its digits is 5832, while the sum is 31.

The square root of 696631 is about 834.6442355878. The cubic root of 696631 is about 88.6477258679.

The spelling of 696631 in words is "six hundred ninety-six thousand, six hundred thirty-one".