58117931 has 2 divisors, whose sum is σ = 58117932. Its totient is φ = 58117930.

The previous prime is 58117921. The next prime is 58117957. The reversal of 58117931 is 13971185.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-58117931 is a prime.

It is a super-2 number, since 2×58117931² = 6755387807441522, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 58117891 and 58117900.

It is not a weakly prime, because it can be changed into another prime (58117921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29058965 + 29058966.

It is an arithmetic number, because the mean of its divisors is an integer number (29058966).

Almost surely, 2^58117931 is an apocalyptic number.

58117931 is a deficient number, since it is larger than the sum of its proper divisors (1).

58117931 is an equidigital number, since it uses as much as digits as its factorization.

58117931 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7560, while the sum is 35.

The square root of 58117931 is about 7623.5117236087. The cubic root of 58117931 is about 387.3498406749.

The spelling of 58117931 in words is "fifty-eight million, one hundred seventeen thousand, nine hundred thirty-one".