80992800 has 216 divisors, whose sum is σ = 326604096. Its totient is φ = 18501120.

The previous prime is 80992799. The next prime is 80992817. The reversal of 80992800 is 829908.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 49597 + ... + 51203.

It is an arithmetic number, because the mean of its divisors is an integer number (1512056).

Almost surely, 2^80992800 is an apocalyptic number.

80992800 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80992800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163302048).

80992800 is an abundant number, since it is smaller than the sum of its proper divisors (245611296).

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

80992800 is a wasteful number, since it uses less digits than its factorization.

80992800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1640 (or 1624 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 80992800 is about 8999.5999911107. The cubic root of 80992800 is about 432.6620507162.

The spelling of 80992800 in words is "eighty million, nine hundred ninety-two thousand, eight hundred".