82913031 has 8 divisors (see below), whose sum is σ = 122834160. Its totient is φ = 55275336.

The previous prime is 82913027. The next prime is 82913069. The reversal of 82913031 is 13031928.

It is not a de Polignac number, because 82913031 - 2² = 82913027 is a prime.

It is a super-2 number, since 2×82913031² = 13749141419213922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 3070853 = 82913031 / (8 + 2 + 9 + 1 + 3 + 0 + 3 + 1).

It is a junction number, because it is equal to n+sod(n) for n = 82912986 and 82913004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82913071) 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 7 ways as a sum of consecutive naturals, for example, 1535400 + ... + 1535453.

It is an arithmetic number, because the mean of its divisors is an integer number (15354270).

Almost surely, 2^82913031 is an apocalyptic number.

82913031 is a deficient number, since it is larger than the sum of its proper divisors (39921129).

82913031 is a wasteful number, since it uses less digits than its factorization.

82913031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3070862 (or 3070856 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 82913031 is about 9105.6592842034. The cubic root of 82913031 is about 436.0546585096.

Adding to 82913031 its reverse (13031928), we get a palindrome (95944959).

The spelling of 82913031 in words is "eighty-two million, nine hundred thirteen thousand, thirty-one".