90163862 has 16 divisors (see below), whose sum is σ = 138668112. Its totient is φ = 43945440.

The previous prime is 90163849. The next prime is 90163867. The reversal of 90163862 is 26836109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90163867) 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, 69968 + ... + 71244.

It is an arithmetic number, because the mean of its divisors is an integer number (8666757).

Almost surely, 2^90163862 is an apocalyptic number.

90163862 is a deficient number, since it is larger than the sum of its proper divisors (48504250).

90163862 is a wasteful number, since it uses less digits than its factorization.

90163862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2143.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 90163862 is about 9495.4653387815. The cubic root of 90163862 is about 448.4122845563.

The spelling of 90163862 in words is "ninety million, one hundred sixty-three thousand, eight hundred sixty-two".