90873880 has 32 divisors (see below), whose sum is σ = 204800400. Its totient is φ = 36290176.

The previous prime is 90873869. The next prime is 90873931. The reversal of 90873880 is 8837809.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29451 + ... + 32389.

Almost surely, 2^90873880 is an apocalyptic number.

It is an amenable number.

90873880 is an abundant number, since it is smaller than the sum of its proper divisors (113926520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90873880 is a wasteful number, since it uses less digits than its factorization.

90873880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3723 (or 3719 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 43.

The square root of 90873880 is about 9532.7792379767. The cubic root of 90873880 is about 449.5862534476.

The spelling of 90873880 in words is "ninety million, eight hundred seventy-three thousand, eight hundred eighty".