961804810 has 32 divisors (see below), whose sum is σ = 1756598400. Its totient is φ = 379127232.

The previous prime is 961804787. The next prime is 961804817. The reversal of 961804810 is 18408169.

It is a happy number.

It is a super-2 number, since 2×961804810² = 1850136985078272200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 961804810.

It is not an unprimeable number, because it can be changed into a prime (961804817) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 210672 + ... + 215188.

It is an arithmetic number, because the mean of its divisors is an integer number (54893700).

Almost surely, 2^961804810 is an apocalyptic number.

961804810 is a deficient number, since it is larger than the sum of its proper divisors (794793590).

961804810 is a wasteful number, since it uses less digits than its factorization.

961804810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4830.

The product of its (nonzero) digits is 13824, while the sum is 37.

The square root of 961804810 is about 31012.9780898256. The cubic root of 961804810 is about 987.1026433137.

The spelling of 961804810 in words is "nine hundred sixty-one million, eight hundred four thousand, eight hundred ten".