90258898 has 4 divisors (see below), whose sum is σ = 135388350. Its totient is φ = 45129448.

The previous prime is 90258859. The next prime is 90258937. The reversal of 90258898 is 89885209.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 89885209 = 163 ⋅551443.

It is an interprime number because it is at equal distance from previous prime (90258859) and next prime (90258937).

It can be written as a sum of positive squares in only one way, i.e., 58415449 + 31843449 = 7643^2 + 5643^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22564723 + ... + 22564726.

Almost surely, 2^90258898 is an apocalyptic number.

90258898 is a deficient number, since it is larger than the sum of its proper divisors (45129452).

90258898 is a wasteful number, since it uses less digits than its factorization.

90258898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45129451.

The product of its (nonzero) digits is 414720, while the sum is 49.

The square root of 90258898 is about 9500.4683042469. The cubic root of 90258898 is about 448.5697768708.

The spelling of 90258898 in words is "ninety million, two hundred fifty-eight thousand, eight hundred ninety-eight".