873086731 has 16 divisors (see below), whose sum is σ = 1043267040. Its totient is φ = 721262080.

The previous prime is 873086729. The next prime is 873086857. The reversal of 873086731 is 137680378.

It is not a de Polignac number, because 873086731 - 2¹ = 873086729 is a prime.

It is a super-2 number, since 2×873086731² = 1524560879696532722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (873086531) 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, 75076 + ... + 85921.

It is an arithmetic number, because the mean of its divisors is an integer number (65204190).

Almost surely, 2^873086731 is an apocalyptic number.

873086731 is a deficient number, since it is larger than the sum of its proper divisors (170180309).

873086731 is a wasteful number, since it uses less digits than its factorization.

873086731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161054.

The product of its (nonzero) digits is 169344, while the sum is 43.

The square root of 873086731 is about 29548.0410687409. The cubic root of 873086731 is about 955.7679489510.

The spelling of 873086731 in words is "eight hundred seventy-three million, eighty-six thousand, seven hundred thirty-one".