11994657 has 4 divisors (see below), whose sum is σ = 15992880. Its totient is φ = 7996436.

The previous prime is 11994637. The next prime is 11994677. The reversal of 11994657 is 75649911.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (11994637) and next prime (11994677).

It is a cyclic number.

It is not a de Polignac number, because 11994657 - 2¹¹ = 11992609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11994637) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1999107 + ... + 1999112.

It is an arithmetic number, because the mean of its divisors is an integer number (3998220).

Almost surely, 2^11994657 is an apocalyptic number.

It is an amenable number.

11994657 is a deficient number, since it is larger than the sum of its proper divisors (3998223).

11994657 is an equidigital number, since it uses as much as digits as its factorization.

11994657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3998222.

The product of its digits is 68040, while the sum is 42.

The square root of 11994657 is about 3463.3303336529. The cubic root of 11994657 is about 228.9088645319.

The spelling of 11994657 in words is "eleven million, nine hundred ninety-four thousand, six hundred fifty-seven".