80401239 has 6 divisors (see below), whose sum is σ = 116135136. Its totient is φ = 53600820.

The previous prime is 80401229. The next prime is 80401267. The reversal of 80401239 is 93210408.

It is not a de Polignac number, because 80401239 - 2²³ = 72012631 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80401219) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4466727 + ... + 4466744.

It is an arithmetic number, because the mean of its divisors is an integer number (19355856).

Almost surely, 2^80401239 is an apocalyptic number.

80401239 is a deficient number, since it is larger than the sum of its proper divisors (35733897).

80401239 is a wasteful number, since it uses less digits than its factorization.

80401239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8933477 (or 8933474 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 80401239 is about 8966.6737980145. The cubic root of 80401239 is about 431.6061063669.

The spelling of 80401239 in words is "eighty million, four hundred one thousand, two hundred thirty-nine".