12291697 has 8 divisors (see below), whose sum is σ = 14198112. Its totient is φ = 10516800.

The previous prime is 12291691. The next prime is 12291703. The reversal of 12291697 is 79619221.

It is an interprime number because it is at equal distance from previous prime (12291691) and next prime (12291703).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12291697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12291691) 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, 32679 + ... + 33052.

It is an arithmetic number, because the mean of its divisors is an integer number (1774764).

Almost surely, 2^12291697 is an apocalyptic number.

12291697 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

12291697 is a deficient number, since it is larger than the sum of its proper divisors (1906415).

12291697 is a wasteful number, since it uses less digits than its factorization.

12291697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65759.

The product of its digits is 13608, while the sum is 37.

The square root of 12291697 is about 3505.9516539736. The cubic root of 12291697 is about 230.7830712753.

It can be divided in two parts, 1229 and 1697, that added together give a triangular number (2926 = T₇₆).

The spelling of 12291697 in words is "twelve million, two hundred ninety-one thousand, six hundred ninety-seven".