614439997 has 2 divisors, whose sum is σ = 614439998. Its totient is φ = 614439996.

The previous prime is 614439949. The next prime is 614440003. The reversal of 614439997 is 799934416.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 524455801 + 89984196 = 22901^2 + 9486^2 .

It is a cyclic number.

It is not a de Polignac number, because 614439997 - 2²³ = 606051389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (614439097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 307219998 + 307219999.

It is an arithmetic number, because the mean of its divisors is an integer number (307219999).

Almost surely, 2^614439997 is an apocalyptic number.

It is an amenable number.

614439997 is a deficient number, since it is larger than the sum of its proper divisors (1).

614439997 is an equidigital number, since it uses as much as digits as its factorization.

614439997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1469664, while the sum is 52.

The square root of 614439997 is about 24787.9002136123. The cubic root of 614439997 is about 850.1453024956.

The spelling of 614439997 in words is "six hundred fourteen million, four hundred thirty-nine thousand, nine hundred ninety-seven".