90873957 has 8 divisors (see below), whose sum is σ = 123151840. Its totient is φ = 59589360.

The previous prime is 90873953. The next prime is 90873973. The reversal of 90873957 is 75937809.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 90873957 - 2² = 90873953 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 (90873953) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 248107 + ... + 248472.

It is an arithmetic number, because the mean of its divisors is an integer number (15393980).

Almost surely, 2^90873957 is an apocalyptic number.

It is an amenable number.

90873957 is a deficient number, since it is larger than the sum of its proper divisors (32277883).

90873957 is a wasteful number, since it uses less digits than its factorization.

90873957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496643.

The product of its (nonzero) digits is 476280, while the sum is 48.

The square root of 90873957 is about 9532.7832766721. The cubic root of 90873957 is about 449.5863804300.

The spelling of 90873957 in words is "ninety million, eight hundred seventy-three thousand, nine hundred fifty-seven".