961634652 has 96 divisors (see below), whose sum is σ = 2500485120. Its totient is φ = 285193920.

The previous prime is 961634627. The next prime is 961634717. The reversal of 961634652 is 256436169.

It is a super-2 number, since 2×961634652² = 1849482407854322208, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2007349 + ... + 2007827.

It is an arithmetic number, because the mean of its divisors is an integer number (26046720).

Almost surely, 2^961634652 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 961634652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1250242560).

961634652 is an abundant number, since it is smaller than the sum of its proper divisors (1538850468).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

961634652 is a wasteful number, since it uses less digits than its factorization.

961634652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 791 (or 789 counting only the distinct ones).

The product of its digits is 233280, while the sum is 42.

The square root of 961634652 is about 31010.2346331014. The cubic root of 961634652 is about 987.0444286892.

The spelling of 961634652 in words is "nine hundred sixty-one million, six hundred thirty-four thousand, six hundred fifty-two".