961564607 has 2 divisors, whose sum is σ = 961564608. Its totient is φ = 961564606.

The previous prime is 961564601. The next prime is 961564619. The reversal of 961564607 is 706465169.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 961564607 - 2⁶ = 961564543 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (961564601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 480782303 + 480782304.

It is an arithmetic number, because the mean of its divisors is an integer number (480782304).

Almost surely, 2^961564607 is an apocalyptic number.

961564607 is a deficient number, since it is larger than the sum of its proper divisors (1).

961564607 is an equidigital number, since it uses as much as digits as its factorization.

961564607 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 272160, while the sum is 44.

The square root of 961564607 is about 31009.1052273361. The cubic root of 961564607 is about 987.0204628287.

The spelling of 961564607 in words is "nine hundred sixty-one million, five hundred sixty-four thousand, six hundred seven".