90415471 has 8 divisors (see below), whose sum is σ = 95558400. Its totient is φ = 85311000.

The previous prime is 90415463. The next prime is 90415477. The reversal of 90415471 is 17451409.

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 90415471 - 2³ = 90415463 is a prime.

It is a super-3 number, since 3×90415471³ (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 (90415477) 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, 4711 + ... + 14248.

It is an arithmetic number, because the mean of its divisors is an integer number (11944800).

Almost surely, 2^90415471 is an apocalyptic number.

90415471 is a deficient number, since it is larger than the sum of its proper divisors (5142929).

90415471 is a wasteful number, since it uses less digits than its factorization.

90415471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19229.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 90415471 is about 9508.7050117248. The cubic root of 90415471 is about 448.8290065036.

The spelling of 90415471 in words is "ninety million, four hundred fifteen thousand, four hundred seventy-one".