90258647 has 4 divisors (see below), whose sum is σ = 94182960. Its totient is φ = 86334336.

The previous prime is 90258631. The next prime is 90258653. The reversal of 90258647 is 74685209.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 90258647 - 2⁴ = 90258631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90258667) 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, 1962122 + ... + 1962167.

It is an arithmetic number, because the mean of its divisors is an integer number (23545740).

Almost surely, 2^90258647 is an apocalyptic number.

90258647 is a deficient number, since it is larger than the sum of its proper divisors (3924313).

90258647 is a wasteful number, since it uses less digits than its factorization.

90258647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3924312.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 90258647 is about 9500.4550943626. The cubic root of 90258647 is about 448.5693610628.

The spelling of 90258647 in words is "ninety million, two hundred fifty-eight thousand, six hundred forty-seven".