90471669 has 8 divisors (see below), whose sum is σ = 122156160. Its totient is φ = 59550816.

The previous prime is 90471653. The next prime is 90471701. The reversal of 90471669 is 96617409.

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

It is not a de Polignac number, because 90471669 - 2⁴ = 90471653 is a prime.

It is a super-3 number, since 3×90471669³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 90471669.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90471629) 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, 190632 + ... + 191105.

It is an arithmetic number, because the mean of its divisors is an integer number (15269520).

Almost surely, 2^90471669 is an apocalyptic number.

It is an amenable number.

90471669 is a deficient number, since it is larger than the sum of its proper divisors (31684491).

90471669 is a wasteful number, since it uses less digits than its factorization.

90471669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381819.

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 90471669 is about 9511.6596343646. The cubic root of 90471669 is about 448.9219775706.

The spelling of 90471669 in words is "ninety million, four hundred seventy-one thousand, six hundred sixty-nine".