964717639 has 2 divisors, whose sum is σ = 964717640. Its totient is φ = 964717638.

The previous prime is 964717597. The next prime is 964717729. The reversal of 964717639 is 936717469.

It is a weak prime.

It is an emirp because it is prime and its reverse (936717469) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 964717639 - 2¹⁵ = 964684871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (964711639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 482358819 + 482358820.

It is an arithmetic number, because the mean of its divisors is an integer number (482358820).

Almost surely, 2^964717639 is an apocalyptic number.

964717639 is a deficient number, since it is larger than the sum of its proper divisors (1).

964717639 is an equidigital number, since it uses as much as digits as its factorization.

964717639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1714608, while the sum is 52.

The square root of 964717639 is about 31059.9040404184. The cubic root of 964717639 is about 988.0981202442.

The spelling of 964717639 in words is "nine hundred sixty-four million, seven hundred seventeen thousand, six hundred thirty-nine".