694007997 has 4 divisors (see below), whose sum is σ = 925344000. Its totient is φ = 462671996.

The previous prime is 694007971. The next prime is 694008037. The reversal of 694007997 is 799700496.

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 694007997 - 2⁶ = 694007933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (694007947) 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, 115667997 + ... + 115668002.

It is an arithmetic number, because the mean of its divisors is an integer number (231336000).

Almost surely, 2^694007997 is an apocalyptic number.

It is an amenable number.

694007997 is a deficient number, since it is larger than the sum of its proper divisors (231336003).

694007997 is a wasteful number, since it uses less digits than its factorization.

694007997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231336002.

The product of its (nonzero) digits is 857304, while the sum is 51.

The square root of 694007997 is about 26344.0315251861. The cubic root of 694007997 is about 885.3632509268.

The spelling of 694007997 in words is "six hundred ninety-four million, seven thousand, nine hundred ninety-seven".