90938071 has 12 divisors (see below), whose sum is σ = 107238432. Its totient is φ = 76876128.

The previous prime is 90938069. The next prime is 90938093. The reversal of 90938071 is 17083909.

It is not a de Polignac number, because 90938071 - 2¹ = 90938069 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 90938071.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90938051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9135 + ... + 16288.

It is an arithmetic number, because the mean of its divisors is an integer number (8936536).

Almost surely, 2^90938071 is an apocalyptic number.

90938071 is a deficient number, since it is larger than the sum of its proper divisors (16300361).

90938071 is a wasteful number, since it uses less digits than its factorization.

90938071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25510 (or 25503 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 37.

The square root of 90938071 is about 9536.1455001484. The cubic root of 90938071 is about 449.6920873010.

The spelling of 90938071 in words is "ninety million, nine hundred thirty-eight thousand, seventy-one".