696599040 has 80 divisors (see below), whose sum is σ = 2226964608. Its totient is φ = 185757696.

The previous prime is 696599039. The next prime is 696599051. The reversal of 696599040 is 40995696.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37672 + ... + 53031.

Almost surely, 2^696599040 is an apocalyptic number.

696599040 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

696599040 is an abundant number, since it is smaller than the sum of its proper divisors (1530365568).

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

696599040 is an equidigital number, since it uses as much as digits as its factorization.

696599040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90729 (or 90713 counting only the distinct ones).

The product of its (nonzero) digits is 524880, while the sum is 48.

The square root of 696599040 is about 26393.1627509853. The cubic root of 696599040 is about 886.4637018866.

The spelling of 696599040 in words is "six hundred ninety-six million, five hundred ninety-nine thousand, forty".