694374497 has 4 divisors (see below), whose sum is σ = 694517760. Its totient is φ = 694231236.

The previous prime is 694374493. The next prime is 694374511. The reversal of 694374497 is 794473496.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 694374497 - 2² = 694374493 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (694374493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64097 + ... + 74142.

It is an arithmetic number, because the mean of its divisors is an integer number (173629440).

Almost surely, 2^694374497 is an apocalyptic number.

It is an amenable number.

694374497 is a deficient number, since it is larger than the sum of its proper divisors (143263).

694374497 is a wasteful number, since it uses less digits than its factorization.

694374497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143262.

The product of its digits is 4572288, while the sum is 53.

The square root of 694374497 is about 26350.9866418698. The cubic root of 694374497 is about 885.5190745534.

The spelling of 694374497 in words is "six hundred ninety-four million, three hundred seventy-four thousand, four hundred ninety-seven".