90342886 has 4 divisors (see below), whose sum is σ = 135514332. Its totient is φ = 45171442.

The previous prime is 90342881. The next prime is 90342887. The reversal of 90342886 is 68824309.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90342881) 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 as a sum of consecutive naturals, namely, 22585720 + ... + 22585723.

It is an arithmetic number, because the mean of its divisors is an integer number (33878583).

Almost surely, 2^90342886 is an apocalyptic number.

90342886 is a deficient number, since it is larger than the sum of its proper divisors (45171446).

90342886 is a wasteful number, since it uses less digits than its factorization.

90342886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45171445.

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 90342886 is about 9504.8874796075. The cubic root of 90342886 is about 448.7088686007.

The spelling of 90342886 in words is "ninety million, three hundred forty-two thousand, eight hundred eighty-six".