90554646 has 192 divisors, whose sum is σ = 252806400. Its totient is φ = 21337344.

The previous prime is 90554621. The next prime is 90554677. The reversal of 90554646 is 64645509.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2105901 + ... + 2105943.

It is an arithmetic number, because the mean of its divisors is an integer number (1316700).

Almost surely, 2^90554646 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 90554646, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126403200).

90554646 is an abundant number, since it is smaller than the sum of its proper divisors (162251754).

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

90554646 is a wasteful number, since it uses less digits than its factorization.

90554646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123 (or 116 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 39.

The square root of 90554646 is about 9516.0204917812. The cubic root of 90554646 is about 449.0591800673.

The spelling of 90554646 in words is "ninety million, five hundred fifty-four thousand, six hundred forty-six".