11993745 has 16 divisors (see below), whose sum is σ = 19809792. Its totient is φ = 6190080.

The previous prime is 11993743. The next prime is 11993747. The reversal of 11993745 is 54739911.

It is a happy number.

11993745 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (11993743) and next prime (11993747).

It is not a de Polignac number, because 11993745 - 2¹ = 11993743 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11993743) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12432 + ... + 13361.

It is an arithmetic number, because the mean of its divisors is an integer number (1238112).

Almost surely, 2^11993745 is an apocalyptic number.

11993745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11993745 is a deficient number, since it is larger than the sum of its proper divisors (7816047).

11993745 is a wasteful number, since it uses less digits than its factorization.

11993745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25832.

The product of its digits is 34020, while the sum is 39.

The square root of 11993745 is about 3463.1986659734. The cubic root of 11993745 is about 228.9030627772.

The spelling of 11993745 in words is "eleven million, nine hundred ninety-three thousand, seven hundred forty-five".