2485643 has 2 divisors, whose sum is σ = 2485644. Its totient is φ = 2485642.

The previous prime is 2485631. The next prime is 2485649. The reversal of 2485643 is 3465842.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2485643 - 2⁴ = 2485627 is a prime.

It is a super-2 number, since 2×2485643² = 12356842246898, which contains 22 as substring.

It is a Sophie Germain prime.

It is a plaindrome in base 14.

It is not a weakly prime, because it can be changed into another prime (2485649) 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 as a sum of consecutive naturals, namely, 1242821 + 1242822.

It is an arithmetic number, because the mean of its divisors is an integer number (1242822).

2^2485643 is an apocalyptic number.

2485643 is a deficient number, since it is larger than the sum of its proper divisors (1).

2485643 is an equidigital number, since it uses as much as digits as its factorization.

2485643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23040, while the sum is 32.

The square root of 2485643 is about 1576.5922110679. The cubic root of 2485643 is about 135.4605759409.

The spelling of 2485643 in words is "two million, four hundred eighty-five thousand, six hundred forty-three".