84400054 has 8 divisors (see below), whose sum is σ = 127829520. Its totient is φ = 41790216.

The previous prime is 84400051. The next prime is 84400061. The reversal of 84400054 is 45000448.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84400051) 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, 204649 + ... + 205060.

It is an arithmetic number, because the mean of its divisors is an integer number (15978690).

Almost surely, 2^84400054 is an apocalyptic number.

84400054 is a deficient number, since it is larger than the sum of its proper divisors (43429466).

84400054 is a wasteful number, since it uses less digits than its factorization.

84400054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409814.

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 84400054 is about 9186.9502012365. The cubic root of 84400054 is about 438.6460687856.

The spelling of 84400054 in words is "eighty-four million, four hundred thousand, fifty-four".