99702561 has 8 divisors (see below), whose sum is σ = 151927744. Its totient is φ = 56972880.

The previous prime is 99702553. The next prime is 99702571. The reversal of 99702561 is 16520799.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 99702561 - 2³ = 99702553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99702571) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2373850 + ... + 2373891.

It is an arithmetic number, because the mean of its divisors is an integer number (18990968).

Almost surely, 2^99702561 is an apocalyptic number.

It is an amenable number.

99702561 is a deficient number, since it is larger than the sum of its proper divisors (52225183).

99702561 is a wasteful number, since it uses less digits than its factorization.

99702561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4747751.

The product of its (nonzero) digits is 34020, while the sum is 39.

The square root of 99702561 is about 9985.1169747780. The cubic root of 99702561 is about 463.6982298242.

The spelling of 99702561 in words is "ninety-nine million, seven hundred two thousand, five hundred sixty-one".