696720 has 40 divisors (see below), whose sum is σ = 2160576. Its totient is φ = 185728.

The previous prime is 696719. The next prime is 696721. The reversal of 696720 is 27696.

It is an interprime number because it is at equal distance from previous prime (696719) and next prime (696721).

It is a tau number, because it is divible by the number of its divisors (40).

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (696721) 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 7 ways as a sum of consecutive naturals, for example, 1212 + ... + 1691.

2⁶⁹⁶⁷²⁰ is an apocalyptic number.

696720 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

696720 is an abundant number, since it is smaller than the sum of its proper divisors (1463856).

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

696720 is a wasteful number, since it uses less digits than its factorization.

696720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2919 (or 2913 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 696720 is about 834.6975500144. The cubic root of 696720 is about 88.6515008515.

The spelling of 696720 in words is "six hundred ninety-six thousand, seven hundred twenty".