697816393 has 8 divisors (see below), whose sum is σ = 710398976. Its totient is φ = 685270800.

The previous prime is 697816367. The next prime is 697816409. The reversal of 697816393 is 393618796.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-697816393 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 697816393.

It is not an unprimeable number, because it can be changed into a prime (697816303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30328 + ... + 48118.

It is an arithmetic number, because the mean of its divisors is an integer number (88799872).

Almost surely, 2^697816393 is an apocalyptic number.

It is an amenable number.

697816393 is a deficient number, since it is larger than the sum of its proper divisors (12582583).

697816393 is a wasteful number, since it uses less digits than its factorization.

697816393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18495.

The product of its digits is 1469664, while the sum is 52.

The square root of 697816393 is about 26416.2145849855. The cubic root of 697816393 is about 886.9797860671.

The spelling of 697816393 in words is "six hundred ninety-seven million, eight hundred sixteen thousand, three hundred ninety-three".