90054678 has 32 divisors (see below), whose sum is σ = 217949184. Its totient is φ = 24216192.

The previous prime is 90054677. The next prime is 90054691. The reversal of 90054678 is 87645009.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90054677) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 62350 + ... + 63777.

It is an arithmetic number, because the mean of its divisors is an integer number (6810912).

Almost surely, 2^90054678 is an apocalyptic number.

90054678 is an abundant number, since it is smaller than the sum of its proper divisors (127894506).

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

90054678 is a wasteful number, since it uses less digits than its factorization.

90054678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126156.

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 90054678 is about 9489.7143265749. The cubic root of 90054678 is about 448.2312097088.

The spelling of 90054678 in words is "ninety million, fifty-four thousand, six hundred seventy-eight".