90940379 has 4 divisors (see below), whose sum is σ = 91081584. Its totient is φ = 90799176.

The previous prime is 90940363. The next prime is 90940387. The reversal of 90940379 is 97304909.

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

It is a cyclic number.

It is not a de Polignac number, because 90940379 - 2⁴ = 90940363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90940079) 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 3 ways as a sum of consecutive naturals, for example, 69632 + ... + 70925.

It is an arithmetic number, because the mean of its divisors is an integer number (22770396).

Almost surely, 2^90940379 is an apocalyptic number.

90940379 is a deficient number, since it is larger than the sum of its proper divisors (141205).

90940379 is a wasteful number, since it uses less digits than its factorization.

90940379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141204.

The product of its (nonzero) digits is 61236, while the sum is 41.

The square root of 90940379 is about 9536.2665126348. The cubic root of 90940379 is about 449.6958916503.

It can be divided in two parts, 90940 and 379, that added together give a palindrome (91319).

The spelling of 90940379 in words is "ninety million, nine hundred forty thousand, three hundred seventy-nine".