80927100 has 180 divisors, whose sum is σ = 267611344. Its totient is φ = 21150720.

The previous prime is 80927083. The next prime is 80927101. The reversal of 80927100 is 172908.

It is a tau number, because it is divible by the number of its divisors (180).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80927101) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 785649 + ... + 785751.

Almost surely, 2^80927100 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 80927100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133805672).

80927100 is an abundant number, since it is smaller than the sum of its proper divisors (186684244).

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

80927100 is a wasteful number, since it uses less digits than its factorization.

80927100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226 (or 210 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 80927100 is about 8995.9490883397. The cubic root of 80927100 is about 432.5450296707.

The spelling of 80927100 in words is "eighty million, nine hundred twenty-seven thousand, one hundred".