674980989 has 8 divisors (see below), whose sum is σ = 900611040. Its totient is φ = 449669136.

The previous prime is 674980963. The next prime is 674980993. The reversal of 674980989 is 989089476.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 674980989 - 2¹⁵ = 674948221 is a prime.

It is a super-2 number, since 2×674980989² = 911198671022836242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (674982989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74554 + ... + 83115.

It is an arithmetic number, because the mean of its divisors is an integer number (112576380).

Almost surely, 2^674980989 is an apocalyptic number.

It is an amenable number.

674980989 is a deficient number, since it is larger than the sum of its proper divisors (225630051).

674980989 is a wasteful number, since it uses less digits than its factorization.

674980989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159099.

The product of its (nonzero) digits is 7838208, while the sum is 60.

The square root of 674980989 is about 25980.3962440914. The cubic root of 674980989 is about 877.1970860530.

The spelling of 674980989 in words is "six hundred seventy-four million, nine hundred eighty thousand, nine hundred eighty-nine".