9961504 has 36 divisors (see below), whose sum is σ = 22817214. Its totient is φ = 4268544.

The previous prime is 9961487. The next prime is 9961517. The reversal of 9961504 is 4051699.

It can be written as a sum of positive squares in only one way, i.e., 8643600 + 1317904 = 2940^2 + 1148^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 9961504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1609 + ... + 4744.

Almost surely, 2^9961504 is an apocalyptic number.

It is an amenable number.

9961504 is an abundant number, since it is smaller than the sum of its proper divisors (12855710).

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

9961504 is a wasteful number, since it uses less digits than its factorization.

9961504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6377 (or 6362 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 9961504 is about 3156.1850389355. The cubic root of 9961504 is about 215.1666564334.

It can be divided in two parts, 996 and 1504, that added together give a square (2500 = 50²).

The spelling of 9961504 in words is "nine million, nine hundred sixty-one thousand, five hundred four".