699763491 has 24 divisors (see below), whose sum is σ = 1156220000. Its totient is φ = 399499776.

The previous prime is 699763489. The next prime is 699763511. The reversal of 699763491 is 194367996.

699763491 is a `hidden beast` number, since 6 + 9 + 97 + 63 + 491 = 666.

699763491 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 699763491 - 2¹ = 699763489 is a prime.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (699763481) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 74241 + ... + 83133.

Almost surely, 2^699763491 is an apocalyptic number.

699763491 is a deficient number, since it is larger than the sum of its proper divisors (456456509).

699763491 is a wasteful number, since it uses less digits than its factorization.

699763491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10155 (or 10152 counting only the distinct ones).

The product of its digits is 2204496, while the sum is 54.

The square root of 699763491 is about 26453.0431330688. The cubic root of 699763491 is about 887.8039917699.

The spelling of 699763491 in words is "six hundred ninety-nine million, seven hundred sixty-three thousand, four hundred ninety-one".