90202671 has 24 divisors (see below), whose sum is σ = 147703920. Its totient is φ = 52586496.

The previous prime is 90202601. The next prime is 90202741. The reversal of 90202671 is 17620209.

It is an interprime number because it is at equal distance from previous prime (90202601) and next prime (90202741).

It is not a de Polignac number, because 90202671 - 2⁷ = 90202543 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90202601) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18066 + ... + 22511.

It is an arithmetic number, because the mean of its divisors is an integer number (6154330).

Almost surely, 2^90202671 is an apocalyptic number.

90202671 is a deficient number, since it is larger than the sum of its proper divisors (57501249).

90202671 is a wasteful number, since it uses less digits than its factorization.

90202671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40615 (or 40612 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 90202671 is about 9497.5086733311. The cubic root of 90202671 is about 448.4766116445.

The spelling of 90202671 in words is "ninety million, two hundred two thousand, six hundred seventy-one".