82412357 has 4 divisors (see below), whose sum is σ = 84639756. Its totient is φ = 80184960.

The previous prime is 82412299. The next prime is 82412359. The reversal of 82412357 is 75321428.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 60124516 + 22287841 = 7754^2 + 4721^2 .

It is a cyclic number.

It is not a de Polignac number, because 82412357 - 2⁶ = 82412293 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 (82412359) 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, 1113644 + ... + 1113717.

It is an arithmetic number, because the mean of its divisors is an integer number (21159939).

Almost surely, 2^82412357 is an apocalyptic number.

It is an amenable number.

82412357 is a deficient number, since it is larger than the sum of its proper divisors (2227399).

82412357 is a wasteful number, since it uses less digits than its factorization.

82412357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2227398.

The product of its digits is 13440, while the sum is 32.

The square root of 82412357 is about 9078.1251919105. The cubic root of 82412357 is about 435.1751740863.

The spelling of 82412357 in words is "eighty-two million, four hundred twelve thousand, three hundred fifty-seven".