84057816 has 16 divisors (see below), whose sum is σ = 210144600. Its totient is φ = 28019264.

The previous prime is 84057811. The next prime is 84057829. The reversal of 84057816 is 61875048.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84057811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1751181 + ... + 1751228.

Almost surely, 2^84057816 is an apocalyptic number.

It is an amenable number.

84057816 is an abundant number, since it is smaller than the sum of its proper divisors (126086784).

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

84057816 is a wasteful number, since it uses less digits than its factorization.

84057816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3502418 (or 3502414 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 39.

The square root of 84057816 is about 9168.3049687497. The cubic root of 84057816 is about 438.0523696269.

It can be divided in two parts, 840 and 57816, that multiplied together give a triangular number (48565440 = T₉₈₅₅).

The spelling of 84057816 in words is "eighty-four million, fifty-seven thousand, eight hundred sixteen".