494032989 has 4 divisors (see below), whose sum is σ = 658710656. Its totient is φ = 329355324.

The previous prime is 494032967. The next prime is 494033021. The reversal of 494032989 is 989230494.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 494032989 - 2²¹ = 491935837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (494032489) 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, 82338829 + ... + 82338834.

It is an arithmetic number, because the mean of its divisors is an integer number (164677664).

Almost surely, 2^494032989 is an apocalyptic number.

It is an amenable number.

494032989 is a deficient number, since it is larger than the sum of its proper divisors (164677667).

494032989 is a wasteful number, since it uses less digits than its factorization.

494032989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164677666.

The product of its (nonzero) digits is 559872, while the sum is 48.

The square root of 494032989 is about 22226.8528811436. The cubic root of 494032989 is about 790.5305355827.

The spelling of 494032989 in words is "four hundred ninety-four million, thirty-two thousand, nine hundred eighty-nine".