10997580 has 96 divisors (see below), whose sum is σ = 35400960. Its totient is φ = 2522880.

The previous prime is 10997579. The next prime is 10997593. The reversal of 10997580 is 8579901.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12102 + ... + 12978.

It is an arithmetic number, because the mean of its divisors is an integer number (368760).

Almost surely, 2^10997580 is an apocalyptic number.

10997580 is a gapful number since it is divisible by the number (10) 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 10997580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17700480).

10997580 is an abundant number, since it is smaller than the sum of its proper divisors (24403380).

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

10997580 is a wasteful number, since it uses less digits than its factorization.

10997580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 919 (or 917 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 39.

The square root of 10997580 is about 3316.2599415607. The cubic root of 10997580 is about 222.3816986734.

The spelling of 10997580 in words is "ten million, nine hundred ninety-seven thousand, five hundred eighty".