694640367 has 20 divisors (see below), whose sum is σ = 1054691176. Its totient is φ = 455498640.

The previous prime is 694640347. The next prime is 694640371. The reversal of 694640367 is 763046496.

It is not a de Polignac number, because 694640367 - 2¹⁹ = 694116079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (694640347) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 65353 + ... + 75234.

Almost surely, 2^694640367 is an apocalyptic number.

694640367 is a deficient number, since it is larger than the sum of its proper divisors (360050809).

694640367 is a wasteful number, since it uses less digits than its factorization.

694640367 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140660 (or 140651 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 45.

The square root of 694640367 is about 26356.0309417029. The cubic root of 694640367 is about 885.6320793346.

The spelling of 694640367 in words is "six hundred ninety-four million, six hundred forty thousand, three hundred sixty-seven".