697676540 has 24 divisors (see below), whose sum is σ = 1598314032. Its totient is φ = 253700480.

The previous prime is 697676533. The next prime is 697676597. The reversal of 697676540 is 45676796.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1585409 + ... + 1585848.

It is an arithmetic number, because the mean of its divisors is an integer number (66596418).

Almost surely, 2^697676540 is an apocalyptic number.

It is an amenable number.

697676540 is an abundant number, since it is smaller than the sum of its proper divisors (900637492).

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

697676540 is a wasteful number, since it uses less digits than its factorization.

697676540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3171277 (or 3171275 counting only the distinct ones).

The product of its (nonzero) digits is 1905120, while the sum is 50.

The square root of 697676540 is about 26413.5673471040. The cubic root of 697676540 is about 886.9205273695.

The spelling of 697676540 in words is "six hundred ninety-seven million, six hundred seventy-six thousand, five hundred forty".