90611648 has 28 divisors (see below), whose sum is σ = 180118512. Its totient is φ = 45227520.

The previous prime is 90611641. The next prime is 90611659. The reversal of 90611648 is 84611609.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90611641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59213 + ... + 60723.

It is an arithmetic number, because the mean of its divisors is an integer number (6432804).

Almost surely, 2^90611648 is an apocalyptic number.

It is an amenable number.

90611648 is a deficient number, since it is larger than the sum of its proper divisors (89506864).

90611648 is a wasteful number, since it uses less digits than its factorization.

90611648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2460 (or 2450 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 90611648 is about 9519.0150751010. The cubic root of 90611648 is about 449.1533843348.

The spelling of 90611648 in words is "ninety million, six hundred eleven thousand, six hundred forty-eight".