99904895 has 8 divisors (see below), whose sum is σ = 120353904. Its totient is φ = 79611904.

The previous prime is 99904891. The next prime is 99904897. The reversal of 99904895 is 59840999.

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

It is a cyclic number.

It is not a de Polignac number, because 99904895 - 2² = 99904891 is a prime.

It is a super-2 number, since 2×99904895² = 19961976089922050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99904891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37589 + ... + 40158.

It is an arithmetic number, because the mean of its divisors is an integer number (15044238).

Almost surely, 2^99904895 is an apocalyptic number.

99904895 is a deficient number, since it is larger than the sum of its proper divisors (20449009).

99904895 is a wasteful number, since it uses less digits than its factorization.

99904895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78009.

The product of its (nonzero) digits is 1049760, while the sum is 53.

The square root of 99904895 is about 9995.2436188419. The cubic root of 99904895 is about 464.0116905868.

The spelling of 99904895 in words is "ninety-nine million, nine hundred four thousand, eight hundred ninety-five".