2405247 has 8 divisors (see below), whose sum is σ = 3453744. Its totient is φ = 1480128.

The previous prime is 2405243. The next prime is 2405251. The reversal of 2405247 is 7425042.

It is an interprime number because it is at equal distance from previous prime (2405243) and next prime (2405251).

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

It is not a de Polignac number, because 2405247 - 2² = 2405243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2405243) 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, 30798 + ... + 30875.

It is an arithmetic number, because the mean of its divisors is an integer number (431718).

2^2405247 is an apocalyptic number.

2405247 is a deficient number, since it is larger than the sum of its proper divisors (1048497).

2405247 is a wasteful number, since it uses less digits than its factorization.

2405247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61689.

The product of its (nonzero) digits is 2240, while the sum is 24.

The square root of 2405247 is about 1550.8858758787. The cubic root of 2405247 is about 133.9840888511.

The spelling of 2405247 in words is "two million, four hundred five thousand, two hundred forty-seven".