99477807 has 32 divisors (see below), whose sum is σ = 156473856. Its totient is φ = 55420800.

The previous prime is 99477799. The next prime is 99477809. The reversal of 99477807 is 70877499.

It is not a de Polignac number, because 99477807 - 2³ = 99477799 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 99477807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99477809) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 197518 + ... + 198020.

It is an arithmetic number, because the mean of its divisors is an integer number (4889808).

Almost surely, 2^99477807 is an apocalyptic number.

99477807 is a deficient number, since it is larger than the sum of its proper divisors (56996049).

99477807 is a wasteful number, since it uses less digits than its factorization.

99477807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 991.

The product of its (nonzero) digits is 889056, while the sum is 51.

The square root of 99477807 is about 9973.8561750208. The cubic root of 99477807 is about 463.3495378744.

The spelling of 99477807 in words is "ninety-nine million, four hundred seventy-seven thousand, eight hundred seven".