11698660 has 24 divisors (see below), whose sum is σ = 25232760. Its totient is φ = 4552704.

The previous prime is 11698649. The next prime is 11698663. The reversal of 11698660 is 6689611.

It can be written as a sum of positive squares in 4 ways, for example, as 729316 + 10969344 = 854^2 + 3312^2 .

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (11698663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7165 + ... + 8644.

It is an arithmetic number, because the mean of its divisors is an integer number (1051365).

Almost surely, 2^11698660 is an apocalyptic number.

11698660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11698660 is an abundant number, since it is smaller than the sum of its proper divisors (13534100).

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

11698660 is a wasteful number, since it uses less digits than its factorization.

11698660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15855 (or 15853 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 11698660 is about 3420.3303933977. The cubic root of 11698660 is about 227.0102009169.

The spelling of 11698660 in words is "eleven million, six hundred ninety-eight thousand, six hundred sixty".