697699394 has 16 divisors (see below), whose sum is σ = 1201195008. Its totient is φ = 297729312.

The previous prime is 697699393. The next prime is 697699441. The reversal of 697699394 is 493996796.

It is not an unprimeable number, because it can be changed into a prime (697699393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103682 + ... + 110205.

It is an arithmetic number, because the mean of its divisors is an integer number (75074688).

Almost surely, 2^697699394 is an apocalyptic number.

697699394 is a deficient number, since it is larger than the sum of its proper divisors (503495614).

697699394 is a wasteful number, since it uses less digits than its factorization.

697699394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214129.

The product of its digits is 19840464, while the sum is 62.

The square root of 697699394 is about 26413.9999621413. Note that the first 4 decimals coincide. The cubic root of 697699394 is about 886.9302116378.

The spelling of 697699394 in words is "six hundred ninety-seven million, six hundred ninety-nine thousand, three hundred ninety-four".