2421047 has 2 divisors, whose sum is σ = 2421048. Its totient is φ = 2421046.

The previous prime is 2421043. The next prime is 2421053. The reversal of 2421047 is 7401242.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2421047 - 2² = 2421043 is a prime.

It is a super-2 number, since 2×2421047² = 11722937152418, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2421043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1210523 + 1210524.

It is an arithmetic number, because the mean of its divisors is an integer number (1210524).

2^2421047 is an apocalyptic number.

2421047 is a deficient number, since it is larger than the sum of its proper divisors (1).

2421047 is an equidigital number, since it uses as much as digits as its factorization.

2421047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 448, while the sum is 20.

The square root of 2421047 is about 1555.9714007655. The cubic root of 2421047 is about 134.2768280244.

Adding to 2421047 its reverse (7401242), we get a palindrome (9822289).

The spelling of 2421047 in words is "two million, four hundred twenty-one thousand, forty-seven".