90971733 has 8 divisors (see below), whose sum is σ = 121353696. Its totient is φ = 60618800.

The previous prime is 90971731. The next prime is 90971759. The reversal of 90971733 is 33717909.

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

It is a cyclic number.

It is not a de Polignac number, because 90971733 - 2¹ = 90971731 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 90971691 and 90971700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90971731) 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, 1603 + ... + 13583.

It is an arithmetic number, because the mean of its divisors is an integer number (15169212).

Almost surely, 2^90971733 is an apocalyptic number.

It is an amenable number.

90971733 is a deficient number, since it is larger than the sum of its proper divisors (30381963).

90971733 is a wasteful number, since it uses less digits than its factorization.

90971733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14515.

The product of its (nonzero) digits is 35721, while the sum is 39.

The square root of 90971733 is about 9537.9103057221. The cubic root of 90971733 is about 449.7475670631.

The spelling of 90971733 in words is "ninety million, nine hundred seventy-one thousand, seven hundred thirty-three".