82750913 has 4 divisors (see below), whose sum is σ = 94572480. Its totient is φ = 70929348.

The previous prime is 82750903. The next prime is 82750919. The reversal of 82750913 is 31905728.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 82750913 - 2⁴ = 82750897 is a prime.

It is a super-4 number, since 4×82750913⁴ (a number of 33 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82750919) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5910773 + ... + 5910786.

It is an arithmetic number, because the mean of its divisors is an integer number (23643120).

Almost surely, 2^82750913 is an apocalyptic number.

It is an amenable number.

82750913 is a deficient number, since it is larger than the sum of its proper divisors (11821567).

82750913 is a wasteful number, since it uses less digits than its factorization.

82750913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11821566.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 82750913 is about 9096.7528822102. The cubic root of 82750913 is about 435.7702704275.

The spelling of 82750913 in words is "eighty-two million, seven hundred fifty thousand, nine hundred thirteen".