961249730 has 16 divisors (see below), whose sum is σ = 1977428160. Its totient is φ = 329571312.

The previous prime is 961249699. The next prime is 961249733. The reversal of 961249730 is 37942169.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (961249733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6866000 + ... + 6866139.

It is an arithmetic number, because the mean of its divisors is an integer number (123589260).

Almost surely, 2^961249730 is an apocalyptic number.

961249730 is an abundant number, since it is smaller than the sum of its proper divisors (1016178430).

961249730 is a wasteful number, since it uses less digits than its factorization.

961249730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13732153.

The product of its (nonzero) digits is 81648, while the sum is 41.

The square root of 961249730 is about 31004.0276415823. The cubic root of 961249730 is about 986.9127134481.

The spelling of 961249730 in words is "nine hundred sixty-one million, two hundred forty-nine thousand, seven hundred thirty".