99475865 has 8 divisors (see below), whose sum is σ = 120062088. Its totient is φ = 79120000.

The previous prime is 99475853. The next prime is 99475889. The reversal of 99475865 is 56857499.

It can be written as a sum of positive squares in 4 ways, for example, as 19855936 + 79619929 = 4456^2 + 8923^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-99475865 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56636 + ... + 58365.

It is an arithmetic number, because the mean of its divisors is an integer number (15007761).

Almost surely, 2^99475865 is an apocalyptic number.

It is an amenable number.

99475865 is a deficient number, since it is larger than the sum of its proper divisors (20586223).

99475865 is a wasteful number, since it uses less digits than its factorization.

99475865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115179.

The product of its digits is 2721600, while the sum is 53.

The square root of 99475865 is about 9973.7588200237. The cubic root of 99475865 is about 463.3465226939.

The spelling of 99475865 in words is "ninety-nine million, four hundred seventy-five thousand, eight hundred sixty-five".