90454564 has 12 divisors (see below), whose sum is σ = 158363100. Its totient is φ = 45207968.

The previous prime is 90454547. The next prime is 90454571. The reversal of 90454564 is 46545409.

It can be written as a sum of positive squares in 2 ways, for example, as 31809600 + 58644964 = 5640^2 + 7658^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 13122 + ... + 18790.

It is an arithmetic number, because the mean of its divisors is an integer number (13196925).

Almost surely, 2^90454564 is an apocalyptic number.

It is an amenable number.

90454564 is a deficient number, since it is larger than the sum of its proper divisors (67908536).

90454564 is a wasteful number, since it uses less digits than its factorization.

90454564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9662 (or 9660 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 37.

The square root of 90454564 is about 9510.7604322683. The cubic root of 90454564 is about 448.8936840193.

The spelling of 90454564 in words is "ninety million, four hundred fifty-four thousand, five hundred sixty-four".