83910155 has 16 divisors (see below), whose sum is σ = 115440384. Its totient is φ = 57356640.

The previous prime is 83910133. The next prime is 83910193. The reversal of 83910155 is 55101938.

It is not a de Polignac number, because 83910155 - 2¹⁰ = 83909131 is a prime.

It is a super-2 number, since 2×83910155² = 14081828224248050, which contains 22 as substring.

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, 7964 + ... + 15206.

It is an arithmetic number, because the mean of its divisors is an integer number (7215024).

Almost surely, 2^83910155 is an apocalyptic number.

83910155 is a deficient number, since it is larger than the sum of its proper divisors (31530229).

83910155 is a wasteful number, since it uses less digits than its factorization.

83910155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7586.

The product of its (nonzero) digits is 5400, while the sum is 32.

The square root of 83910155 is about 9160.2486319968. The cubic root of 83910155 is about 437.7957162640.

The spelling of 83910155 in words is "eighty-three million, nine hundred ten thousand, one hundred fifty-five".