2115447 has 8 divisors (see below), whose sum is σ = 2828544. Its totient is φ = 1406328.

The previous prime is 2115437. The next prime is 2115457. The reversal of 2115447 is 7445112.

2115447 is digitally balanced in base 2, 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 (2115437) and next prime (2115457).

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

It is not a de Polignac number, because 2115447 - 2⁴ = 2115431 is a prime.

2115447 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2115427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 628 + ... + 2150.

It is an arithmetic number, because the mean of its divisors is an integer number (353568).

2^2115447 is an apocalyptic number.

2115447 is a deficient number, since it is larger than the sum of its proper divisors (713097).

2115447 is a wasteful number, since it uses less digits than its factorization.

2115447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1989.

The product of its digits is 1120, while the sum is 24.

The square root of 2115447 is about 1454.4576308714. The cubic root of 2115447 is about 128.3711355814.

The spelling of 2115447 in words is "two million, one hundred fifteen thousand, four hundred forty-seven".