99770004 has 18 divisors (see below), whose sum is σ = 252196490. Its totient is φ = 33256656.

The previous prime is 99769963. The next prime is 99770017. The reversal of 99770004 is 40007799.

It can be written as a sum of positive squares in only one way, i.e., 92736900 + 7033104 = 9630^2 + 2652^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 2771389 = 99770004 / (9 + 9 + 7 + 7 + 0 + 0 + 0 + 4).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1385659 + ... + 1385730.

Almost surely, 2^99770004 is an apocalyptic number.

It is an amenable number.

99770004 is an abundant number, since it is smaller than the sum of its proper divisors (152426486).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

99770004 is a wasteful number, since it uses less digits than its factorization.

99770004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2771399 (or 2771394 counting only the distinct ones).

The product of its (nonzero) digits is 15876, while the sum is 36.

The square root of 99770004 is about 9988.4935801151. The cubic root of 99770004 is about 463.8027612442.

The spelling of 99770004 in words is "ninety-nine million, seven hundred seventy thousand, four".