82374813 has 14 divisors (see below), whose sum is σ = 123506814. Its totient is φ = 54916056.

The previous prime is 82374811. The next prime is 82374829. The reversal of 82374813 is 31847328.

It can be written as a sum of positive squares in only one way, i.e., 74183769 + 8191044 = 8613^2 + 2862^2 .

It is not a de Polignac number, because 82374813 - 2¹ = 82374811 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82374811) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 55770 + ... + 57227.

Almost surely, 2^82374813 is an apocalyptic number.

It is an amenable number.

82374813 is a deficient number, since it is larger than the sum of its proper divisors (41132001).

82374813 is an equidigital number, since it uses as much as digits as its factorization.

82374813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113015 (or 113000 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 82374813 is about 9076.0571285113. The cubic root of 82374813 is about 435.1090808491.

The spelling of 82374813 in words is "eighty-two million, three hundred seventy-four thousand, eight hundred thirteen".