2457869 has 2 divisors, whose sum is σ = 2457870. Its totient is φ = 2457868.

The previous prime is 2457839. The next prime is 2457893. The reversal of 2457869 is 9687542.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1755625 + 702244 = 1325^2 + 838^2 .

It is a cyclic number.

It is not a de Polignac number, because 2457869 - 2⁸ = 2457613 is a prime.

It is a super-2 number, since 2×2457869² = 12082240042322, which contains 22 as substring.

It is a Chen prime.

It is a d-powerful number, because it can be written as 2¹¹ + 4⁴ + 5⁷ + 7³ + 8⁷ + 6⁷ + 9 .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2457839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1228934 + 1228935.

It is an arithmetic number, because the mean of its divisors is an integer number (1228935).

2^2457869 is an apocalyptic number.

It is an amenable number.

2457869 is a deficient number, since it is larger than the sum of its proper divisors (1).

2457869 is an equidigital number, since it uses as much as digits as its factorization.

2457869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120960, while the sum is 41.

The square root of 2457869 is about 1567.7592289634. The cubic root of 2457869 is about 134.9541499533.

The spelling of 2457869 in words is "two million, four hundred fifty-seven thousand, eight hundred sixty-nine".