674652889 has 2 divisors, whose sum is σ = 674652890. Its totient is φ = 674652888.

The previous prime is 674652887. The next prime is 674652917. The reversal of 674652889 is 988256476.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 621654489 + 52998400 = 24933^2 + 7280^2 .

It is a cyclic number.

It is not a de Polignac number, because 674652889 - 2¹ = 674652887 is a prime.

Together with 674652887, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (674652887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 337326444 + 337326445.

It is an arithmetic number, because the mean of its divisors is an integer number (337326445).

Almost surely, 2^674652889 is an apocalyptic number.

It is an amenable number.

674652889 is a deficient number, since it is larger than the sum of its proper divisors (1).

674652889 is an equidigital number, since it uses as much as digits as its factorization.

674652889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5806080, while the sum is 55.

The square root of 674652889 is about 25974.0811002045. The cubic root of 674652889 is about 877.0549314271.

The spelling of 674652889 in words is "six hundred seventy-four million, six hundred fifty-two thousand, eight hundred eighty-nine".