99563786 has 48 divisors (see below), whose sum is σ = 183387240. Its totient is φ = 40360320.

The previous prime is 99563777. The next prime is 99563831. The reversal of 99563786 is 68736599.

It can be written as a sum of positive squares in 4 ways, for example, as 98386561 + 1177225 = 9919^2 + 1085^2 .

It is a Harshad number since it is a multiple of its sum of digits (53).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 150296 + ... + 150956.

Almost surely, 2^99563786 is an apocalyptic number.

99563786 is a deficient number, since it is larger than the sum of its proper divisors (83823454).

99563786 is a wasteful number, since it uses less digits than its factorization.

99563786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 759 (or 752 counting only the distinct ones).

The product of its digits is 2449440, while the sum is 53.

The square root of 99563786 is about 9978.1654626489. The cubic root of 99563786 is about 463.4829909503.

The spelling of 99563786 in words is "ninety-nine million, five hundred sixty-three thousand, seven hundred eighty-six".