90711054 has 72 divisors (see below), whose sum is σ = 240706440. Its totient is φ = 24548832.

The previous prime is 90711007. The next prime is 90711077. The reversal of 90711054 is 45011709.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 14052 + ... + 19464.

It is an arithmetic number, because the mean of its divisors is an integer number (3343145).

Almost surely, 2^90711054 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 90711054, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120353220).

90711054 is an abundant number, since it is smaller than the sum of its proper divisors (149995386).

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

90711054 is a wasteful number, since it uses less digits than its factorization.

90711054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5454 (or 5444 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 27.

The square root of 90711054 is about 9524.2350873968. The cubic root of 90711054 is about 449.3175730271.

The spelling of 90711054 in words is "ninety million, seven hundred eleven thousand, fifty-four".