1197799660 has 48 divisors (see below), whose sum is σ = 2561836032. Its totient is φ = 470304000.

The previous prime is 1197799657. The next prime is 1197799663. The reversal of 1197799660 is 669977911.

It is an interprime number because it is at equal distance from previous prime (1197799657) and next prime (1197799663).

It is a super-2 number, since 2×1197799660² = 2869448050992231200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1197799663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1040085 + ... + 1041235.

It is an arithmetic number, because the mean of its divisors is an integer number (53371584).

Almost surely, 2^1197799660 is an apocalyptic number.

1197799660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1197799660 is an abundant number, since it is smaller than the sum of its proper divisors (1364036372).

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

1197799660 is a wasteful number, since it uses less digits than its factorization.

1197799660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2074 (or 2072 counting only the distinct ones).

The product of its (nonzero) digits is 1285956, while the sum is 55.

The square root of 1197799660 is about 34609.2424071952. The cubic root of 1197799660 is about 1062.0086689768.

The spelling of 1197799660 in words is "one billion, one hundred ninety-seven million, seven hundred ninety-nine thousand, six hundred sixty".