80911908 has 216 divisors, whose sum is σ = 273559104. Its totient is φ = 19584000.

The previous prime is 80911903. The next prime is 80911931.

80911908 is nontrivially palindromic in base 10.

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

It is not an unprimeable number, because it can be changed into a prime (80911903) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 801058 + ... + 801158.

Almost surely, 2^80911908 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 80911908, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136779552).

80911908 is an abundant number, since it is smaller than the sum of its proper divisors (192647196).

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

80911908 is a wasteful number, since it uses less digits than its factorization.

80911908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163 (or 141 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 36.

The square root of 80911908 is about 8995.1046686517. The cubic root of 80911908 is about 432.5179615426.

It can be divided in two parts, 8091 and 1908, that added together give a palindrome (9999).

The spelling of 80911908 in words is "eighty million, nine hundred eleven thousand, nine hundred eight".