2447091 has 10 divisors (see below), whose sum is σ = 3655652. Its totient is φ = 1631340.

The previous prime is 2447077. The next prime is 2447111. The reversal of 2447091 is 1907442.

It is a happy number.

It is not a de Polignac number, because 2447091 - 2⁵ = 2447059 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (2447021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 15025 + ... + 15186.

2^2447091 is an apocalyptic number.

2447091 is a deficient number, since it is larger than the sum of its proper divisors (1208561).

2447091 is an equidigital number, since it uses as much as digits as its factorization.

2447091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30223 (or 30214 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 2447091 is about 1564.3180622878. The cubic root of 2447091 is about 134.7565984540.

The spelling of 2447091 in words is "two million, four hundred forty-seven thousand, ninety-one".