890990371 has 2 divisors, whose sum is σ = 890990372. Its totient is φ = 890990370.

The previous prime is 890990239. The next prime is 890990509. The reversal of 890990371 is 173099098.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 890990371 - 2²⁵ = 857435939 is a prime.

It is not a weakly prime, because it can be changed into another prime (890990671) 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 as a sum of consecutive naturals, namely, 445495185 + 445495186.

It is an arithmetic number, because the mean of its divisors is an integer number (445495186).

Almost surely, 2^890990371 is an apocalyptic number.

890990371 is a deficient number, since it is larger than the sum of its proper divisors (1).

890990371 is an equidigital number, since it uses as much as digits as its factorization.

890990371 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 122472, while the sum is 46.

The square root of 890990371 is about 29849.4618209441. The cubic root of 890990371 is about 962.2568326172.

The spelling of 890990371 in words is "eight hundred ninety million, nine hundred ninety thousand, three hundred seventy-one".