84080739 has 4 divisors (see below), whose sum is σ = 112107656. Its totient is φ = 56053824.

The previous prime is 84080729. The next prime is 84080741. The reversal of 84080739 is 93708048.

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

It is a de Polignac number, because none of the positive numbers 2^k-84080739 is a prime.

It is a super-2 number, since 2×84080739² = 14139141341572242, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 84080697 and 84080706.

It is not an unprimeable number, because it can be changed into a prime (84080729) 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, 14013454 + ... + 14013459.

It is an arithmetic number, because the mean of its divisors is an integer number (28026914).

Almost surely, 2^84080739 is an apocalyptic number.

84080739 is a deficient number, since it is larger than the sum of its proper divisors (28026917).

84080739 is a wasteful number, since it uses less digits than its factorization.

84080739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28026916.

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 84080739 is about 9169.5550055605. Note that the first 3 decimals coincide. The cubic root of 84080739 is about 438.0921857213.

The spelling of 84080739 in words is "eighty-four million, eighty thousand, seven hundred thirty-nine".