82071474 has 16 divisors (see below), whose sum is σ = 166834560. Its totient is φ = 26908560.

The previous prime is 82071443. The next prime is 82071481. The reversal of 82071474 is 47417028.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111754 + ... + 112485.

It is an arithmetic number, because the mean of its divisors is an integer number (10427160).

Almost surely, 2^82071474 is an apocalyptic number.

82071474 is an abundant number, since it is smaller than the sum of its proper divisors (84763086).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82071474 is a wasteful number, since it uses less digits than its factorization.

82071474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224305.

The product of its (nonzero) digits is 12544, while the sum is 33.

The square root of 82071474 is about 9059.3307699852. The cubic root of 82071474 is about 434.5743385338.

The spelling of 82071474 in words is "eighty-two million, seventy-one thousand, four hundred seventy-four".