80739700 has 36 divisors (see below), whose sum is σ = 176398432. Its totient is φ = 32076000.

The previous prime is 80739689. The next prime is 80739707. The reversal of 80739700 is 793708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80739707) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12427 + ... + 17773.

Almost surely, 2^80739700 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80739700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88199216).

80739700 is an abundant number, since it is smaller than the sum of its proper divisors (95658732).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80739700 is a wasteful number, since it uses less digits than its factorization.

80739700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5512 (or 5505 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 34.

The square root of 80739700 is about 8985.5272521984. The cubic root of 80739700 is about 432.2108952558.

The spelling of 80739700 in words is "eighty million, seven hundred thirty-nine thousand, seven hundred".