11965770 has 24 divisors (see below), whose sum is σ = 31111236. Its totient is φ = 3190848.

The previous prime is 11965769. The next prime is 11965771. The reversal of 11965770 is 7756911.

11965770 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (11965769) and next prime (11965771).

It can be written as a sum of positive squares in 2 ways, for example, as 11964681 + 1089 = 3459^2 + 33^2 .

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (11965771) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66387 + ... + 66566.

Almost surely, 2^11965770 is an apocalyptic number.

11965770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11965770 is an abundant number, since it is smaller than the sum of its proper divisors (19145466).

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

11965770 is a wasteful number, since it uses less digits than its factorization.

11965770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132966 (or 132963 counting only the distinct ones).

The product of its (nonzero) digits is 13230, while the sum is 36.

The square root of 11965770 is about 3459.1574118562. The cubic root of 11965770 is about 228.7249547067.

The spelling of 11965770 in words is "eleven million, nine hundred sixty-five thousand, seven hundred seventy".