90248613 has 64 divisors (see below), whose sum is σ = 158269440. Its totient is φ = 44416512.

The previous prime is 90248593. The next prime is 90248647. The reversal of 90248613 is 31684209.

It is not a de Polignac number, because 90248613 - 2¹⁴ = 90232229 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90248813) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 658681 + ... + 658817.

It is an arithmetic number, because the mean of its divisors is an integer number (2472960).

Almost surely, 2^90248613 is an apocalyptic number.

It is an amenable number.

90248613 is a deficient number, since it is larger than the sum of its proper divisors (68020827).

90248613 is a wasteful number, since it uses less digits than its factorization.

90248613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 90248613 is about 9499.9269997195. The cubic root of 90248613 is about 448.5527380506.

The spelling of 90248613 in words is "ninety million, two hundred forty-eight thousand, six hundred thirteen".