84251074 has 4 divisors (see below), whose sum is σ = 126376614. Its totient is φ = 42125536.

The previous prime is 84251053. The next prime is 84251077. The reversal of 84251074 is 47015248.

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

It can be written as a sum of positive squares in only one way, i.e., 76650025 + 7601049 = 8755^2 + 2757^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (84251077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21062767 + ... + 21062770.

Almost surely, 2^84251074 is an apocalyptic number.

84251074 is a deficient number, since it is larger than the sum of its proper divisors (42125540).

84251074 is a wasteful number, since it uses less digits than its factorization.

84251074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42125539.

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 84251074 is about 9178.8383796644. The cubic root of 84251074 is about 438.3878225845.

The spelling of 84251074 in words is "eighty-four million, two hundred fifty-one thousand, seventy-four".