76839873 has 32 divisors (see below), whose sum is σ = 114573312. Its totient is φ = 45417600.

The previous prime is 76839871. The next prime is 76839883. The reversal of 76839873 is 37893867.

It is not a de Polignac number, because 76839873 - 2¹ = 76839871 is a prime.

It is a super-2 number, since 2×76839873² = 11808732165312258, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (76839871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 402208 + ... + 402398.

It is an arithmetic number, because the mean of its divisors is an integer number (3580416).

Almost surely, 2^76839873 is an apocalyptic number.

76839873 is a gapful number since it is divisible by the number (73) formed by its first and last digit.

It is an amenable number.

76839873 is a deficient number, since it is larger than the sum of its proper divisors (37733439).

76839873 is a wasteful number, since it uses less digits than its factorization.

76839873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445.

The product of its digits is 1524096, while the sum is 51.

The square root of 76839873 is about 8765.8355562947. The cubic root of 76839873 is about 425.1369763787.

The spelling of 76839873 in words is "seventy-six million, eight hundred thirty-nine thousand, eight hundred seventy-three".