999913377 has 16 divisors (see below), whose sum is σ = 1353967488. Its totient is φ = 656261760.

The previous prime is 999913363. The next prime is 999913379. The reversal of 999913377 is 773319999.

It is not a de Polignac number, because 999913377 - 2⁷ = 999913249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (999913379) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 161613 + ... + 167685.

It is an arithmetic number, because the mean of its divisors is an integer number (84622968).

Almost surely, 2^999913377 is an apocalyptic number.

It is an amenable number.

999913377 is a deficient number, since it is larger than the sum of its proper divisors (354054111).

999913377 is a wasteful number, since it uses less digits than its factorization.

999913377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6920.

The product of its digits is 2893401, while the sum is 57.

The square root of 999913377 is about 31621.4069421334. The cubic root of 999913377 is about 999.9711248329.

The spelling of 999913377 in words is "nine hundred ninety-nine million, nine hundred thirteen thousand, three hundred seventy-seven".