99770452 has 12 divisors (see below), whose sum is σ = 174874336. Its totient is φ = 49806360.

The previous prime is 99770401. The next prime is 99770477. The reversal of 99770452 is 25407799.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 99770399 and 99770408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16824 + ... + 21967.

Almost surely, 2^99770452 is an apocalyptic number.

It is an amenable number.

99770452 is a deficient number, since it is larger than the sum of its proper divisors (75103884).

99770452 is a wasteful number, since it uses less digits than its factorization.

99770452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39438 (or 39436 counting only the distinct ones).

The product of its (nonzero) digits is 158760, while the sum is 43.

The square root of 99770452 is about 9988.5160058940. The cubic root of 99770452 is about 463.8034554520.

The spelling of 99770452 in words is "ninety-nine million, seven hundred seventy thousand, four hundred fifty-two".