890329491 has 24 divisors (see below), whose sum is σ = 1393357680. Its totient is φ = 545642496.

The previous prime is 890329487. The next prime is 890329499. The reversal of 890329491 is 194923098.

It is not a de Polignac number, because 890329491 - 2² = 890329487 is a prime.

It is not an unprimeable number, because it can be changed into a prime (890329499) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61086 + ... + 74243.

It is an arithmetic number, because the mean of its divisors is an integer number (58056570).

Almost surely, 2^890329491 is an apocalyptic number.

890329491 is a deficient number, since it is larger than the sum of its proper divisors (503028189).

890329491 is a wasteful number, since it uses less digits than its factorization.

890329491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135395 (or 135392 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The square root of 890329491 is about 29838.3895510465. The cubic root of 890329491 is about 962.0188601268.

The spelling of 890329491 in words is "eight hundred ninety million, three hundred twenty-nine thousand, four hundred ninety-one".