11697645 has 16 divisors (see below), whose sum is σ = 18862272. Its totient is φ = 6190080.

The previous prime is 11697641. The next prime is 11697667. The reversal of 11697645 is 54679611.

It is not a de Polignac number, because 11697645 - 2² = 11697641 is a prime.

It is a super-3 number, since 3×11697645³ (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11697641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1012 + ... + 4941.

It is an arithmetic number, because the mean of its divisors is an integer number (1178892).

Almost surely, 2^11697645 is an apocalyptic number.

11697645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11697645 is a deficient number, since it is larger than the sum of its proper divisors (7164627).

11697645 is a wasteful number, since it uses less digits than its factorization.

11697645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6092.

The product of its digits is 45360, while the sum is 39.

The square root of 11697645 is about 3420.1820127005. The cubic root of 11697645 is about 227.0036354351.

The spelling of 11697645 in words is "eleven million, six hundred ninety-seven thousand, six hundred forty-five".