90394371 has 12 divisors (see below), whose sum is σ = 130776360. Its totient is φ = 60167520.

The previous prime is 90394333. The next prime is 90394373. The reversal of 90394371 is 17349309.

It is not a de Polignac number, because 90394371 - 2⁶ = 90394307 is a prime.

It is a super-2 number, since 2×90394371² = 16342284616971282, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (90394373) 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 11 ways as a sum of consecutive naturals, for example, 1690 + ... + 13551.

It is an arithmetic number, because the mean of its divisors is an integer number (10898030).

Almost surely, 2^90394371 is an apocalyptic number.

90394371 is a deficient number, since it is larger than the sum of its proper divisors (40381989).

90394371 is a wasteful number, since it uses less digits than its factorization.

90394371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15906 (or 15903 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 36.

The square root of 90394371 is about 9507.5954373332. The cubic root of 90394371 is about 448.7940898065.

The spelling of 90394371 in words is "ninety million, three hundred ninety-four thousand, three hundred seventy-one".