80960405 has 8 divisors (see below), whose sum is σ = 97385784. Its totient is φ = 64612800.

The previous prime is 80960381. The next prime is 80960417. The reversal of 80960405 is 50406908.

It can be written as a sum of positive squares in 4 ways, for example, as 3678724 + 77281681 = 1918^2 + 8791^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-80960405 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17126 + ... + 21335.

It is an arithmetic number, because the mean of its divisors is an integer number (12173223).

Almost surely, 2^80960405 is an apocalyptic number.

It is an amenable number.

80960405 is a deficient number, since it is larger than the sum of its proper divisors (16425379).

80960405 is a wasteful number, since it uses less digits than its factorization.

80960405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38887.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 80960405 is about 8997.8000088911. The cubic root of 80960405 is about 432.6043585253.

The spelling of 80960405 in words is "eighty million, nine hundred sixty thousand, four hundred five".