80307391 has 8 divisors (see below), whose sum is σ = 83022464. Its totient is φ = 77600160.

The previous prime is 80307377. The next prime is 80307401. The reversal of 80307391 is 19370308.

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

It is a cyclic number.

It is not a de Polignac number, because 80307391 - 2⁷ = 80307263 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80307301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24925 + ... + 27961.

It is an arithmetic number, because the mean of its divisors is an integer number (10377808).

Almost surely, 2^80307391 is an apocalyptic number.

80307391 is a deficient number, since it is larger than the sum of its proper divisors (2715073).

80307391 is a wasteful number, since it uses less digits than its factorization.

80307391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3921.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 80307391 is about 8961.4391143387. The cubic root of 80307391 is about 431.4381108629.

Adding to 80307391 its reverse (19370308), we get a palindrome (99677699).

The spelling of 80307391 in words is "eighty million, three hundred seven thousand, three hundred ninety-one".