9961450 has 24 divisors (see below), whose sum is σ = 18620460. Its totient is φ = 3964800.

The previous prime is 9961429. The next prime is 9961451. The reversal of 9961450 is 541699.

It can be written as a sum of positive squares in 6 ways, for example, as 2524921 + 7436529 = 1589^2 + 2727^2 .

It is a super-2 number, since 2×9961450² = 198460972205000, which contains 22 as substring.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (9961451) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13696 + ... + 14404.

Almost surely, 2^9961450 is an apocalyptic number.

9961450 is a deficient number, since it is larger than the sum of its proper divisors (8659010).

9961450 is a wasteful number, since it uses less digits than its factorization.

9961450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1002 (or 997 counting only the distinct ones).

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

The square root of 9961450 is about 3156.1764842923. The cubic root of 9961450 is about 215.1662676360.

Subtracting from 9961450 its sum of digits (34), we obtain a triangular number (9961416 = T₄₄₆₃).

The spelling of 9961450 in words is "nine million, nine hundred sixty-one thousand, four hundred fifty".