2520347 has 2 divisors, whose sum is σ = 2520348. Its totient is φ = 2520346.

The previous prime is 2520319. The next prime is 2520367. The reversal of 2520347 is 7430252.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2520347 - 2⁶ = 2520283 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2520367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1260173 + 1260174.

It is an arithmetic number, because the mean of its divisors is an integer number (1260174).

2^2520347 is an apocalyptic number.

2520347 is a deficient number, since it is larger than the sum of its proper divisors (1).

2520347 is an equidigital number, since it uses as much as digits as its factorization.

2520347 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 2520347 is about 1587.5600776034. The cubic root of 2520347 is about 136.0880881170.

Adding to 2520347 its reverse (7430252), we get a palindrome (9950599).

The spelling of 2520347 in words is "two million, five hundred twenty thousand, three hundred forty-seven".