80650964 has 18 divisors (see below), whose sum is σ = 145845882. Its totient is φ = 39022800.

The previous prime is 80650963. The next prime is 80650979. The reversal of 80650964 is 46905608.

It can be written as a sum of positive squares in only one way, i.e., 69022864 + 11628100 = 8308^2 + 3410^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80650961) 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 5 ways as a sum of consecutive naturals, for example, 6647 + ... + 14334.

It is an arithmetic number, because the mean of its divisors is an integer number (8102549).

Almost surely, 2^80650964 is an apocalyptic number.

It is an amenable number.

80650964 is a deficient number, since it is larger than the sum of its proper divisors (65194918).

80650964 is a wasteful number, since it uses less digits than its factorization.

80650964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21047 (or 21014 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 80650964 is about 8980.5881767287. The cubic root of 80650964 is about 432.0524984782.

The spelling of 80650964 in words is "eighty million, six hundred fifty thousand, nine hundred sixty-four".