99943315 has 16 divisors (see below), whose sum is σ = 122554656. Its totient is φ = 78220800.

The previous prime is 99943307. The next prime is 99943331. The reversal of 99943315 is 51334999.

It is not a de Polignac number, because 99943315 - 2³ = 99943307 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63579 + ... + 65131.

It is an arithmetic number, because the mean of its divisors is an integer number (7659666).

Almost surely, 2^99943315 is an apocalyptic number.

99943315 is a deficient number, since it is larger than the sum of its proper divisors (22611341).

99943315 is a wasteful number, since it uses less digits than its factorization.

99943315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1830.

The product of its digits is 131220, while the sum is 43.

The square root of 99943315 is about 9997.1653482375. The cubic root of 99943315 is about 464.0711639636.

The spelling of 99943315 in words is "ninety-nine million, nine hundred forty-three thousand, three hundred fifteen".