99983895 has 32 divisors (see below), whose sum is σ = 175716864. Its totient is φ = 48144000.

The previous prime is 99983867. The next prime is 99983929. The reversal of 99983895 is 59838999.

It is not a de Polignac number, because 99983895 - 2¹⁸ = 99721751 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22909 + ... + 26921.

It is an arithmetic number, because the mean of its divisors is an integer number (5491152).

Almost surely, 2^99983895 is an apocalyptic number.

99983895 is a deficient number, since it is larger than the sum of its proper divisors (75732969).

99983895 is a wasteful number, since it uses less digits than its factorization.

99983895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4183.

The product of its digits is 6298560, while the sum is 60.

The square root of 99983895 is about 9999.1947175760. The cubic root of 99983895 is about 464.1339644274.

Subtracting from 99983895 its reverse (59838999), we obtain a square (40144896 = 6336²).

The spelling of 99983895 in words is "ninety-nine million, nine hundred eighty-three thousand, eight hundred ninety-five".