90989548 has 24 divisors (see below), whose sum is σ = 175472528. Its totient is φ = 41017536.

The previous prime is 90989543. The next prime is 90989573. The reversal of 90989548 is 84598909.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a junction number, because it is equal to n+sod(n) for n = 90989495 and 90989504.

It is not an unprimeable number, because it can be changed into a prime (90989543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18111 + ... + 22582.

Almost surely, 2^90989548 is an apocalyptic number.

It is an amenable number.

90989548 is a deficient number, since it is larger than the sum of its proper divisors (84482980).

90989548 is a wasteful number, since it uses less digits than its factorization.

90989548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40753 (or 40751 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 52.

The square root of 90989548 is about 9538.8441647822. The cubic root of 90989548 is about 449.7769231781.

The spelling of 90989548 in words is "ninety million, nine hundred eighty-nine thousand, five hundred forty-eight".