965561279 has 8 divisors (see below), whose sum is σ = 989047488. Its totient is φ = 942197760.

The previous prime is 965561251. The next prime is 965561339. The reversal of 965561279 is 972165569.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 965561279 - 2¹⁶ = 965495743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (965563279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14642 + ... + 46319.

It is an arithmetic number, because the mean of its divisors is an integer number (123630936).

Almost surely, 2^965561279 is an apocalyptic number.

965561279 is a deficient number, since it is larger than the sum of its proper divisors (23486209).

965561279 is a wasteful number, since it uses less digits than its factorization.

965561279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61345.

The product of its digits is 1020600, while the sum is 50.

The square root of 965561279 is about 31073.4819259123. The cubic root of 965561279 is about 988.3860650237.

The spelling of 965561279 in words is "nine hundred sixty-five million, five hundred sixty-one thousand, two hundred seventy-nine".