696194991 has 12 divisors (see below), whose sum is σ = 1012022232. Its totient is φ = 461172816.

The previous prime is 696194971. The next prime is 696195007. The reversal of 696194991 is 199491696.

It is not a de Polignac number, because 696194991 - 2²⁶ = 629086127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (696194911) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 244941 + ... + 247766.

It is an arithmetic number, because the mean of its divisors is an integer number (84335186).

Almost surely, 2^696194991 is an apocalyptic number.

696194991 is a deficient number, since it is larger than the sum of its proper divisors (315827241).

696194991 is a wasteful number, since it uses less digits than its factorization.

696194991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492870 (or 492867 counting only the distinct ones).

The product of its digits is 944784, while the sum is 54.

The square root of 696194991 is about 26385.5072151361. The cubic root of 696194991 is about 886.2922766119.

The spelling of 696194991 in words is "six hundred ninety-six million, one hundred ninety-four thousand, nine hundred ninety-one".