964256693 has 2 divisors, whose sum is σ = 964256694. Its totient is φ = 964256692.

The previous prime is 964256663. The next prime is 964256717. The reversal of 964256693 is 396652469.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 962116324 + 2140369 = 31018^2 + 1463^2 .

It is a cyclic number.

It is not a de Polignac number, because 964256693 - 2¹⁴ = 964240309 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (964256603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 482128346 + 482128347.

It is an arithmetic number, because the mean of its divisors is an integer number (482128347).

Almost surely, 2^964256693 is an apocalyptic number.

It is an amenable number.

964256693 is a deficient number, since it is larger than the sum of its proper divisors (1).

964256693 is an equidigital number, since it uses as much as digits as its factorization.

964256693 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2099520, while the sum is 50.

The square root of 964256693 is about 31052.4828797956. The cubic root of 964256693 is about 987.9407227435.

The spelling of 964256693 in words is "nine hundred sixty-four million, two hundred fifty-six thousand, six hundred ninety-three".