997108860 has 96 divisors (see below), whose sum is σ = 3055433472. Its totient is φ = 240952320.

The previous prime is 997108859. The next prime is 997108891. The reversal of 997108860 is 68801799.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 220179 + ... + 224661.

It is an arithmetic number, because the mean of its divisors is an integer number (31827432).

Almost surely, 2^997108860 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 997108860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1527716736).

997108860 is an abundant number, since it is smaller than the sum of its proper divisors (2058324612).

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

997108860 is a wasteful number, since it uses less digits than its factorization.

997108860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4843 (or 4841 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 48.

The square root of 997108860 is about 31577.0305760374. The cubic root of 997108860 is about 999.0353564287.

The spelling of 997108860 in words is "nine hundred ninety-seven million, one hundred eight thousand, eight hundred sixty".