614871989 has 2 divisors, whose sum is σ = 614871990. Its totient is φ = 614871988.

The previous prime is 614871979. The next prime is 614872003. The reversal of 614871989 is 989178416.

614871989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 586463089 + 28408900 = 24217^2 + 5330^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-614871989 is a prime.

It is a super-2 number, since 2×614871989² = 756135125713632242, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 614871989.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (614871979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 307435994 + 307435995.

It is an arithmetic number, because the mean of its divisors is an integer number (307435995).

Almost surely, 2^614871989 is an apocalyptic number.

It is an amenable number.

614871989 is a deficient number, since it is larger than the sum of its proper divisors (1).

614871989 is an equidigital number, since it uses as much as digits as its factorization.

614871989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 870912, while the sum is 53.

The square root of 614871989 is about 24796.6124500908. The cubic root of 614871989 is about 850.3444919671.

The spelling of 614871989 in words is "six hundred fourteen million, eight hundred seventy-one thousand, nine hundred eighty-nine".