90500379 has 4 divisors (see below), whose sum is σ = 120667176. Its totient is φ = 60333584.

The previous prime is 90500357. The next prime is 90500381. The reversal of 90500379 is 97300509.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90500379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90507379) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15083394 + ... + 15083399.

It is an arithmetic number, because the mean of its divisors is an integer number (30166794).

Almost surely, 2^90500379 is an apocalyptic number.

90500379 is a deficient number, since it is larger than the sum of its proper divisors (30166797).

90500379 is a wasteful number, since it uses less digits than its factorization.

90500379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30166796.

The product of its (nonzero) digits is 8505, while the sum is 33.

The square root of 90500379 is about 9513.1687149971. The cubic root of 90500379 is about 448.9694590530.

The spelling of 90500379 in words is "ninety million, five hundred thousand, three hundred seventy-nine".