696690 has 24 divisors (see below), whose sum is σ = 1811628. Its totient is φ = 185760.

The previous prime is 696679. The next prime is 696691. The reversal of 696690 is 96696.

It can be written as a sum of positive squares in 2 ways, for example, as 660969 + 35721 = 813^2 + 189^2 .

It is a super-2 number, since 2×696690² = 970753912200, which contains 22 as substring.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (696691) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3781 + ... + 3960.

2⁶⁹⁶⁶⁹⁰ is an apocalyptic number.

696690 is an abundant number, since it is smaller than the sum of its proper divisors (1114938).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

696690 is a wasteful number, since it uses less digits than its factorization.

696690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7754 (or 7751 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 36.

The square root of 696690 is about 834.6795792398. The cubic root of 696690 is about 88.6502284210.

It can be divided in two parts, 6966 and 90, that added together give a square (7056 = 84²).

The spelling of 696690 in words is "six hundred ninety-six thousand, six hundred ninety".