80961750 has 48 divisors (see below), whose sum is σ = 218926656. Its totient is φ = 21589200.

The previous prime is 80961743. The next prime is 80961761. The reversal of 80961750 is 5716908.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 15742 + ... + 20241.

It is an arithmetic number, because the mean of its divisors is an integer number (4560972).

Almost surely, 2^80961750 is an apocalyptic number.

80961750 is an abundant number, since it is smaller than the sum of its proper divisors (137964906).

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

80961750 is a wasteful number, since it uses less digits than its factorization.

80961750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36006 (or 35993 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 36.

The square root of 80961750 is about 8997.8747490727. The cubic root of 80961750 is about 432.6067541393.

The spelling of 80961750 in words is "eighty million, nine hundred sixty-one thousand, seven hundred fifty".