80756401 has 4 divisors (see below), whose sum is σ = 88097904. Its totient is φ = 73414900.

The previous prime is 80756371. The next prime is 80756447. The reversal of 80756401 is 10465708.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 80756401 - 2⁵ = 80756369 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80756201) 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 3 ways as a sum of consecutive naturals, for example, 3670735 + ... + 3670756.

It is an arithmetic number, because the mean of its divisors is an integer number (22024476).

Almost surely, 2^80756401 is an apocalyptic number.

It is an amenable number.

80756401 is a deficient number, since it is larger than the sum of its proper divisors (7341503).

80756401 is a wasteful number, since it uses less digits than its factorization.

80756401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7341502.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 80756401 is about 8986.4565319151. The cubic root of 80756401 is about 432.2406941301.

The spelling of 80756401 in words is "eighty million, seven hundred fifty-six thousand, four hundred one".