80824739 has 2 divisors, whose sum is σ = 80824740. Its totient is φ = 80824738.

The previous prime is 80824721. The next prime is 80824741. The reversal of 80824739 is 93742808.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 80824739 - 2²⁴ = 64047523 is a prime.

Together with 80824741, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 80824696 and 80824705.

It is not a weakly prime, because it can be changed into another prime (80824759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40412369 + 40412370.

It is an arithmetic number, because the mean of its divisors is an integer number (40412370).

Almost surely, 2^80824739 is an apocalyptic number.

80824739 is a deficient number, since it is larger than the sum of its proper divisors (1).

80824739 is an equidigital number, since it uses as much as digits as its factorization.

80824739 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 80824739 is about 8990.2580051965. The cubic root of 80824739 is about 432.3625838960.

It can be divided in two parts, 8082 and 4739, that added together give a palindrome (12821).

The spelling of 80824739 in words is "eighty million, eight hundred twenty-four thousand, seven hundred thirty-nine".