90940471 has 8 divisors (see below), whose sum is σ = 91744880. Its totient is φ = 90139392.

The previous prime is 90940439. The next prime is 90940489. The reversal of 90940471 is 17404909.

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 90940471 - 2⁵ = 90940439 is a prime.

It is a super-3 number, since 3×90940471³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90940411) 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, 109285 + ... + 110113.

It is an arithmetic number, because the mean of its divisors is an integer number (11468110).

Almost surely, 2^90940471 is an apocalyptic number.

90940471 is a deficient number, since it is larger than the sum of its proper divisors (804409).

90940471 is a wasteful number, since it uses less digits than its factorization.

90940471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1665.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 90940471 is about 9536.2713363243. The cubic root of 90940471 is about 449.6960432955.

The spelling of 90940471 in words is "ninety million, nine hundred forty thousand, four hundred seventy-one".