80120800 has 36 divisors (see below), whose sum is σ = 195596856. Its totient is φ = 32048000.

The previous prime is 80120791. The next prime is 80120809. The reversal of 80120800 is 802108.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (80120791) and next prime (80120809).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80120809) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 49276 + ... + 50875.

It is an arithmetic number, because the mean of its divisors is an integer number (5433246).

Almost surely, 2^80120800 is an apocalyptic number.

80120800 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

80120800 is an abundant number, since it is smaller than the sum of its proper divisors (115476056).

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

80120800 is a wasteful number, since it uses less digits than its factorization.

80120800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100171 (or 100158 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

The square root of 80120800 is about 8951.0222879848. The cubic root of 80120800 is about 431.1037086938.

Adding to 80120800 its reverse (802108), we get a palindrome (80922908).

The spelling of 80120800 in words is "eighty million, one hundred twenty thousand, eight hundred".