90549416 has 8 divisors (see below), whose sum is σ = 169780170. Its totient is φ = 45274704.

The previous prime is 90549391. The next prime is 90549451. The reversal of 90549416 is 61494509.

It can be written as a sum of positive squares in only one way, i.e., 89226916 + 1322500 = 9446^2 + 1150^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 90549416.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5659331 + ... + 5659346.

Almost surely, 2^90549416 is an apocalyptic number.

It is an amenable number.

90549416 is a deficient number, since it is larger than the sum of its proper divisors (79230754).

90549416 is a wasteful number, since it uses less digits than its factorization.

90549416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11318683 (or 11318679 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 90549416 is about 9515.7456880688. The cubic root of 90549416 is about 449.0505347360.

The spelling of 90549416 in words is "ninety million, five hundred forty-nine thousand, four hundred sixteen".