90530971 has 8 divisors (see below), whose sum is σ = 93125840. Its totient is φ = 87943968.

The previous prime is 90530969. The next prime is 90530981. The reversal of 90530971 is 17903509.

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

It is not a de Polignac number, because 90530971 - 2¹ = 90530969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90530981) 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, 27565 + ... + 30673.

It is an arithmetic number, because the mean of its divisors is an integer number (11640730).

Almost surely, 2^90530971 is an apocalyptic number.

90530971 is a deficient number, since it is larger than the sum of its proper divisors (2594869).

90530971 is a wasteful number, since it uses less digits than its factorization.

90530971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3933.

The product of its (nonzero) digits is 8505, while the sum is 34.

The square root of 90530971 is about 9514.7764555979. The cubic root of 90530971 is about 449.0200419954.

The spelling of 90530971 in words is "ninety million, five hundred thirty thousand, nine hundred seventy-one".