80683739 has 4 divisors (see below), whose sum is σ = 82051320. Its totient is φ = 79316160.

The previous prime is 80683723. The next prime is 80683741. The reversal of 80683739 is 93738608.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 80683739 - 2⁴ = 80683723 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 80683739.

It is not an unprimeable number, because it can be changed into a prime (80683789) 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, 683702 + ... + 683819.

It is an arithmetic number, because the mean of its divisors is an integer number (20512830).

Almost surely, 2^80683739 is an apocalyptic number.

80683739 is a deficient number, since it is larger than the sum of its proper divisors (1367581).

80683739 is a wasteful number, since it uses less digits than its factorization.

80683739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1367580.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 80683739 is about 8982.4127605004. The cubic root of 80683739 is about 432.1110164928. Note that the first 3 decimals are identical.

The spelling of 80683739 in words is "eighty million, six hundred eighty-three thousand, seven hundred thirty-nine".