696982491 has 24 divisors (see below), whose sum is σ = 1096290000. Its totient is φ = 425017152.

The previous prime is 696982471. The next prime is 696982513. The reversal of 696982491 is 194289696.

696982491 is a `hidden beast` number, since 69 + 6 + 98 + 2 + 491 = 666.

It is not a de Polignac number, because 696982491 - 2⁵ = 696982459 is a prime.

It is not an unprimeable number, because it can be changed into a prime (696982471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 65316 + ... + 75233.

It is an arithmetic number, because the mean of its divisors is an integer number (45678750).

Almost surely, 2^696982491 is an apocalyptic number.

696982491 is a deficient number, since it is larger than the sum of its proper divisors (399307509).

696982491 is a wasteful number, since it uses less digits than its factorization.

696982491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140603 (or 140600 counting only the distinct ones).

The product of its digits is 1679616, while the sum is 54.

The square root of 696982491 is about 26400.4259624727. The cubic root of 696982491 is about 886.6263267839.

The spelling of 696982491 in words is "six hundred ninety-six million, nine hundred eighty-two thousand, four hundred ninety-one".