90545748 has 12 divisors (see below), whose sum is σ = 211273440. Its totient is φ = 30181912.

The previous prime is 90545747. The next prime is 90545809. The reversal of 90545748 is 84754509.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90545747) 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, 3772728 + ... + 3772751.

It is an arithmetic number, because the mean of its divisors is an integer number (17606120).

Almost surely, 2^90545748 is an apocalyptic number.

It is an amenable number.

90545748 is an abundant number, since it is smaller than the sum of its proper divisors (120727692).

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

90545748 is a wasteful number, since it uses less digits than its factorization.

90545748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7545486 (or 7545484 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 42.

The square root of 90545748 is about 9515.5529529292. The cubic root of 90545748 is about 449.0444712344.

The spelling of 90545748 in words is "ninety million, five hundred forty-five thousand, seven hundred forty-eight".