697097678 has 16 divisors (see below), whose sum is σ = 1065808800. Its totient is φ = 341892096.

The previous prime is 697097671. The next prime is 697097683. The reversal of 697097678 is 876790796.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (697097671) by changing a digit.

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, 6023 + ... + 37821.

It is an arithmetic number, because the mean of its divisors is an integer number (66613050).

Almost surely, 2^697097678 is an apocalyptic number.

697097678 is a deficient number, since it is larger than the sum of its proper divisors (368711122).

697097678 is a wasteful number, since it uses less digits than its factorization.

697097678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32011.

The product of its (nonzero) digits is 8001504, while the sum is 59.

The square root of 697097678 is about 26402.6074091178. The cubic root of 697097678 is about 886.6751669401.

The spelling of 697097678 in words is "six hundred ninety-seven million, ninety-seven thousand, six hundred seventy-eight".