80739000 has 96 divisors (see below), whose sum is σ = 272928240. Its totient is φ = 21528000.

The previous prime is 80738971. The next prime is 80739011. The reversal of 80739000 is 93708.

It is a happy number.

It is a super-2 number, since 2×80739000² = 13037572242000000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4515 + ... + 13485.

Almost surely, 2^80739000 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 80739000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136464120).

80739000 is an abundant number, since it is smaller than the sum of its proper divisors (192189240).

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

80739000 is a wasteful number, since it uses less digits than its factorization.

80739000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8998 (or 8981 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 80739000 is about 8985.4883005878. The cubic root of 80739000 is about 432.2096461863.

The spelling of 80739000 in words is "eighty million, seven hundred thirty-nine thousand".