90248745 has 8 divisors (see below), whose sum is σ = 144398016. Its totient is φ = 48132656.

The previous prime is 90248729. The next prime is 90248761. The reversal of 90248745 is 54784209.

It is an interprime number because it is at equal distance from previous prime (90248729) and next prime (90248761).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 90248745 - 2⁴ = 90248729 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3008277 + ... + 3008306.

It is an arithmetic number, because the mean of its divisors is an integer number (18049752).

Almost surely, 2^90248745 is an apocalyptic number.

It is an amenable number.

90248745 is a deficient number, since it is larger than the sum of its proper divisors (54149271).

90248745 is a wasteful number, since it uses less digits than its factorization.

90248745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6016591.

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 90248745 is about 9499.9339471388. The cubic root of 90248745 is about 448.5529567388.

The spelling of 90248745 in words is "ninety million, two hundred forty-eight thousand, seven hundred forty-five".