99764665 has 64 divisors (see below), whose sum is σ = 166182912. Its totient is φ = 55468800.

The previous prime is 99764663. The next prime is 99764671. The reversal of 99764665 is 56646799.

It is not a de Polignac number, because 99764665 - 2¹ = 99764663 is a prime.

It is not an unprimeable number, because it can be changed into a prime (99764663) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 154834 + ... + 155476.

It is an arithmetic number, because the mean of its divisors is an integer number (2596608).

Almost surely, 2^99764665 is an apocalyptic number.

It is an amenable number.

99764665 is a deficient number, since it is larger than the sum of its proper divisors (66418247).

99764665 is a wasteful number, since it uses less digits than its factorization.

99764665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 710.

The product of its digits is 2449440, while the sum is 52.

The square root of 99764665 is about 9988.2263190218. The cubic root of 99764665 is about 463.7944879256.

It can be divided in two parts, 9976 and 4665, that added together give a palindrome (14641).

The spelling of 99764665 in words is "ninety-nine million, seven hundred sixty-four thousand, six hundred sixty-five".