82074757 has 4 divisors (see below), whose sum is σ = 82115200. Its totient is φ = 82034316.

The previous prime is 82074739. The next prime is 82074767. The reversal of 82074757 is 75747028.

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 a cyclic number.

It is not a de Polignac number, because 82074757 - 2²³ = 73686149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82074767) 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, 17007 + ... + 21292.

It is an arithmetic number, because the mean of its divisors is an integer number (20528800).

Almost surely, 2^82074757 is an apocalyptic number.

It is an amenable number.

82074757 is a deficient number, since it is larger than the sum of its proper divisors (40443).

82074757 is a wasteful number, since it uses less digits than its factorization.

82074757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40442.

The product of its (nonzero) digits is 109760, while the sum is 40.

The square root of 82074757 is about 9059.5119625728. The cubic root of 82074757 is about 434.5801330300.

The spelling of 82074757 in words is "eighty-two million, seventy-four thousand, seven hundred fifty-seven".