90208671 has 8 divisors (see below), whose sum is σ = 137460864. Its totient is φ = 51547800.

The previous prime is 90208669. The next prime is 90208673. The reversal of 90208671 is 17680209.

It is an interprime number because it is at equal distance from previous prime (90208669) and next prime (90208673).

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

It is not a de Polignac number, because 90208671 - 2¹ = 90208669 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90208673) 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, 2147805 + ... + 2147846.

It is an arithmetic number, because the mean of its divisors is an integer number (17182608).

Almost surely, 2^90208671 is an apocalyptic number.

90208671 is a deficient number, since it is larger than the sum of its proper divisors (47252193).

90208671 is a wasteful number, since it uses less digits than its factorization.

90208671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4295661.

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 90208671 is about 9497.8245403882. The cubic root of 90208671 is about 448.4865551786.

The spelling of 90208671 in words is "ninety million, two hundred eight thousand, six hundred seventy-one".