11802391 has 8 divisors (see below), whose sum is σ = 12287520. Its totient is φ = 11322528.

The previous prime is 11802389. The next prime is 11802397. The reversal of 11802391 is 19320811.

11802391 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 11802391 - 2¹ = 11802389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11802397) 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, 3625 + ... + 6061.

It is an arithmetic number, because the mean of its divisors is an integer number (1535940).

Almost surely, 2^11802391 is an apocalyptic number.

11802391 is a deficient number, since it is larger than the sum of its proper divisors (485129).

11802391 is a wasteful number, since it uses less digits than its factorization.

11802391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2633.

The product of its (nonzero) digits is 432, while the sum is 25.

The square root of 11802391 is about 3435.4608133408. The cubic root of 11802391 is about 227.6791874118.

It can be divided in two parts, 11 and 802391, that multiplied together give a triangular number (8826301 = T₄₂₀₁).

The spelling of 11802391 in words is "eleven million, eight hundred two thousand, three hundred ninety-one".