80973544 has 8 divisors (see below), whose sum is σ = 151825410. Its totient is φ = 40486768.

The previous prime is 80973521. The next prime is 80973569. The reversal of 80973544 is 44537908.

It can be written as a sum of positive squares in only one way, i.e., 80317444 + 656100 = 8962^2 + 810^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 80973497 and 80973506.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5060839 + ... + 5060854.

Almost surely, 2^80973544 is an apocalyptic number.

It is an amenable number.

80973544 is a deficient number, since it is larger than the sum of its proper divisors (70851866).

80973544 is a wasteful number, since it uses less digits than its factorization.

80973544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10121699 (or 10121695 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 80973544 is about 8998.5301021889. The cubic root of 80973544 is about 432.6277595990.

The spelling of 80973544 in words is "eighty million, nine hundred seventy-three thousand, five hundred forty-four".