961965263 has 4 divisors (see below), whose sum is σ = 1099388880. Its totient is φ = 824541648.

The previous prime is 961965259. The next prime is 961965283. The reversal of 961965263 is 362569169.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 961965263 - 2² = 961965259 is a prime.

It is a super-3 number, since 3×961965263³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (961965223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68711798 + ... + 68711811.

It is an arithmetic number, because the mean of its divisors is an integer number (274847220).

Almost surely, 2^961965263 is an apocalyptic number.

961965263 is a deficient number, since it is larger than the sum of its proper divisors (137423617).

961965263 is a wasteful number, since it uses less digits than its factorization.

961965263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137423616.

The product of its digits is 524880, while the sum is 47.

The square root of 961965263 is about 31015.5648505714. The cubic root of 961965263 is about 987.1575313645.

The spelling of 961965263 in words is "nine hundred sixty-one million, nine hundred sixty-five thousand, two hundred sixty-three".