90970319 has 4 divisors (see below), whose sum is σ = 99240360. Its totient is φ = 82700280.

The previous prime is 90970301. The next prime is 90970343. The reversal of 90970319 is 91307909.

It is a happy number.

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 90970319 - 2⁸ = 90970063 is a prime.

It is a super-2 number, since 2×90970319² = 16551197877923522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90970619) 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, 4135004 + ... + 4135025.

It is an arithmetic number, because the mean of its divisors is an integer number (24810090).

Almost surely, 2^90970319 is an apocalyptic number.

90970319 is a deficient number, since it is larger than the sum of its proper divisors (8270041).

90970319 is a wasteful number, since it uses less digits than its factorization.

90970319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8270040.

The product of its (nonzero) digits is 15309, while the sum is 38.

The square root of 90970319 is about 9537.8361801826. The cubic root of 90970319 is about 449.7452368655.

The spelling of 90970319 in words is "ninety million, nine hundred seventy thousand, three hundred nineteen".