90169671 has 16 divisors (see below), whose sum is σ = 124761600. Its totient is φ = 57858528.

The previous prime is 90169663. The next prime is 90169679. The reversal of 90169671 is 17696109.

It is an interprime number because it is at equal distance from previous prime (90169663) and next prime (90169679).

It is not a de Polignac number, because 90169671 - 2³ = 90169663 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90169679) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29790 + ... + 32676.

It is an arithmetic number, because the mean of its divisors is an integer number (7797600).

Almost surely, 2^90169671 is an apocalyptic number.

90169671 is a deficient number, since it is larger than the sum of its proper divisors (34591929).

90169671 is a wasteful number, since it uses less digits than its factorization.

90169671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3278.

The product of its (nonzero) digits is 20412, while the sum is 39.

The square root of 90169671 is about 9495.7712167048. The cubic root of 90169671 is about 448.4219143235.

The spelling of 90169671 in words is "ninety million, one hundred sixty-nine thousand, six hundred seventy-one".