90103632 has 20 divisors (see below), whose sum is σ = 232767840. Its totient is φ = 30034528.

The previous prime is 90103631. The next prime is 90103669. The reversal of 90103632 is 23630109.

It is a Harshad number since it is a multiple of its sum of digits (24).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90103631) 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, 938532 + ... + 938627.

It is an arithmetic number, because the mean of its divisors is an integer number (11638392).

Almost surely, 2^90103632 is an apocalyptic number.

It is an amenable number.

90103632 is an abundant number, since it is smaller than the sum of its proper divisors (142664208).

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

90103632 is a wasteful number, since it uses less digits than its factorization.

90103632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1877170 (or 1877164 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 24.

The square root of 90103632 is about 9492.2932950894. The cubic root of 90103632 is about 448.3124149509.

The spelling of 90103632 in words is "ninety million, one hundred three thousand, six hundred thirty-two".