90347748 has 12 divisors (see below), whose sum is σ = 210811440. Its totient is φ = 30115912.

The previous prime is 90347743. The next prime is 90347759. The reversal of 90347748 is 84774309.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (90347743) 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, 3764478 + ... + 3764501.

It is an arithmetic number, because the mean of its divisors is an integer number (17567620).

Almost surely, 2^90347748 is an apocalyptic number.

It is an amenable number.

90347748 is an abundant number, since it is smaller than the sum of its proper divisors (120463692).

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

90347748 is a wasteful number, since it uses less digits than its factorization.

90347748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7528986 (or 7528984 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 42.

The square root of 90347748 is about 9505.1432393205. The cubic root of 90347748 is about 448.7169178727.

The spelling of 90347748 in words is "ninety million, three hundred forty-seven thousand, seven hundred forty-eight".