84121264 has 20 divisors (see below), whose sum is σ = 163183504. Its totient is φ = 42009408.

The previous prime is 84121249. The next prime is 84121277. The reversal of 84121264 is 46212148.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12754 + ... + 18190.

Almost surely, 2^84121264 is an apocalyptic number.

It is an amenable number.

84121264 is a deficient number, since it is larger than the sum of its proper divisors (79062240).

84121264 is a wasteful number, since it uses less digits than its factorization.

84121264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6412 (or 6406 counting only the distinct ones).

The product of its digits is 3072, while the sum is 28.

The square root of 84121264 is about 9171.7644976308. The cubic root of 84121264 is about 438.1625578998.

The spelling of 84121264 in words is "eighty-four million, one hundred twenty-one thousand, two hundred sixty-four".