99945475 has 24 divisors (see below), whose sum is σ = 142624800. Its totient is φ = 68056320.

The previous prime is 99945463. The next prime is 99945481. The reversal of 99945475 is 57454999.

It is not a de Polignac number, because 99945475 - 2⁹ = 99944963 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24159 + ... + 27991.

It is an arithmetic number, because the mean of its divisors is an integer number (5942700).

Almost surely, 2^99945475 is an apocalyptic number.

99945475 is a deficient number, since it is larger than the sum of its proper divisors (42679325).

99945475 is a wasteful number, since it uses less digits than its factorization.

99945475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3999 (or 3994 counting only the distinct ones).

The product of its digits is 2041200, while the sum is 52.

The square root of 99945475 is about 9997.2733782767. The cubic root of 99945475 is about 464.0745071470.

The spelling of 99945475 in words is "ninety-nine million, nine hundred forty-five thousand, four hundred seventy-five".