11949797 has 8 divisors (see below), whose sum is σ = 12379392. Its totient is φ = 11527600.

The previous prime is 11949781. The next prime is 11949799. The reversal of 11949797 is 79794911.

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

It is a cyclic number.

It is not a de Polignac number, because 11949797 - 2⁴ = 11949781 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11949799) 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, 1547 + ... + 5127.

It is an arithmetic number, because the mean of its divisors is an integer number (1547424).

Almost surely, 2^11949797 is an apocalyptic number.

It is an amenable number.

11949797 is a deficient number, since it is larger than the sum of its proper divisors (429595).

11949797 is an equidigital number, since it uses as much as digits as its factorization.

11949797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3699.

The product of its digits is 142884, while the sum is 47.

The square root of 11949797 is about 3456.8478416037. The cubic root of 11949797 is about 228.6231350843.

The spelling of 11949797 in words is "eleven million, nine hundred forty-nine thousand, seven hundred ninety-seven".