11902279 has 4 divisors (see below), whose sum is σ = 11919960. Its totient is φ = 11884600.

The previous prime is 11902277. The next prime is 11902301. The reversal of 11902279 is 97220911.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97220911 = 1249 ⋅77839.

It is a cyclic number.

It is not a de Polignac number, because 11902279 - 2¹ = 11902277 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11902279.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11902277) 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, 7789 + ... + 9190.

It is an arithmetic number, because the mean of its divisors is an integer number (2979990).

Almost surely, 2^11902279 is an apocalyptic number.

11902279 is a deficient number, since it is larger than the sum of its proper divisors (17681).

11902279 is an equidigital number, since it uses as much as digits as its factorization.

11902279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17680.

The product of its (nonzero) digits is 2268, while the sum is 31.

The square root of 11902279 is about 3449.9679708658. The cubic root of 11902279 is about 228.3196949011.

The spelling of 11902279 in words is "eleven million, nine hundred two thousand, two hundred seventy-nine".