11978099 has 6 divisors (see below), whose sum is σ = 13933764. Its totient is φ = 10266900.

The previous prime is 11978077. The next prime is 11978107. The reversal of 11978099 is 99087911.

It is not a de Polignac number, because 11978099 - 2¹² = 11974003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11978039) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 122177 + ... + 122274.

It is an arithmetic number, because the mean of its divisors is an integer number (2322294).

Almost surely, 2^11978099 is an apocalyptic number.

11978099 is a deficient number, since it is larger than the sum of its proper divisors (1955665).

11978099 is an equidigital number, since it uses as much as digits as its factorization.

11978099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244465 (or 244458 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 44.

The square root of 11978099 is about 3460.9390344240. The cubic root of 11978099 is about 228.8034837665.

The spelling of 11978099 in words is "eleven million, nine hundred seventy-eight thousand, ninety-nine".