99015947 has 4 divisors (see below), whose sum is σ = 102430320. Its totient is φ = 95601576.

The previous prime is 99015923. The next prime is 99015949. The reversal of 99015947 is 74951099.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 99015947 - 2⁸ = 99015691 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 99015898 and 99015907.

It is not an unprimeable number, because it can be changed into a prime (99015949) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1707143 + ... + 1707200.

It is an arithmetic number, because the mean of its divisors is an integer number (25607580).

Almost surely, 2^99015947 is an apocalyptic number.

99015947 is a deficient number, since it is larger than the sum of its proper divisors (3414373).

99015947 is a wasteful number, since it uses less digits than its factorization.

99015947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3414372.

The product of its (nonzero) digits is 102060, while the sum is 44.

The square root of 99015947 is about 9950.6757056996. The cubic root of 99015947 is about 462.6313385944.

The spelling of 99015947 in words is "ninety-nine million, fifteen thousand, nine hundred forty-seven".