80724401 has 4 divisors (see below), whose sum is σ = 81062400. Its totient is φ = 80386404.

The previous prime is 80724383. The next prime is 80724437. The reversal of 80724401 is 10442708.

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 80724401 - 2⁶ = 80724337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80724451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 168641 + ... + 169118.

It is an arithmetic number, because the mean of its divisors is an integer number (20265600).

Almost surely, 2^80724401 is an apocalyptic number.

It is an amenable number.

80724401 is a deficient number, since it is larger than the sum of its proper divisors (337999).

80724401 is a wasteful number, since it uses less digits than its factorization.

80724401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337998.

The product of its (nonzero) digits is 1792, while the sum is 26.

The square root of 80724401 is about 8984.6758984395. The cubic root of 80724401 is about 432.1835943032.

The spelling of 80724401 in words is "eighty million, seven hundred twenty-four thousand, four hundred one".