90475671 has 24 divisors (see below), whose sum is σ = 142511616. Its totient is φ = 50612640.

The previous prime is 90475667. The next prime is 90475673. The reversal of 90475671 is 17657409.

It is not a de Polignac number, because 90475671 - 2² = 90475667 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90475673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2535 + ... + 13688.

It is an arithmetic number, because the mean of its divisors is an integer number (5937984).

Almost surely, 2^90475671 is an apocalyptic number.

90475671 is a deficient number, since it is larger than the sum of its proper divisors (52035945).

90475671 is a wasteful number, since it uses less digits than its factorization.

90475671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16263 (or 16250 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 39.

The square root of 90475671 is about 9511.8700054195. The cubic root of 90475671 is about 448.9285968039.

The spelling of 90475671 in words is "ninety million, four hundred seventy-five thousand, six hundred seventy-one".