84490764 has 12 divisors (see below), whose sum is σ = 197145144. Its totient is φ = 28163584.

The previous prime is 84490727. The next prime is 84490771. The reversal of 84490764 is 46709448.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3520437 + ... + 3520460.

It is an arithmetic number, because the mean of its divisors is an integer number (16428762).

Almost surely, 2^84490764 is an apocalyptic number.

It is an amenable number.

84490764 is an abundant number, since it is smaller than the sum of its proper divisors (112654380).

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

84490764 is a wasteful number, since it uses less digits than its factorization.

84490764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7040904 (or 7040902 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 42.

The square root of 84490764 is about 9191.8857695252. The cubic root of 84490764 is about 438.8031592800.

The spelling of 84490764 in words is "eighty-four million, four hundred ninety thousand, seven hundred sixty-four".