7873457 has 2 divisors, whose sum is σ = 7873458. Its totient is φ = 7873456.

The previous prime is 7873451. The next prime is 7873469. The reversal of 7873457 is 7543787.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7706176 + 167281 = 2776^2 + 409^2 .

It is a cyclic number.

It is not a de Polignac number, because 7873457 - 2¹⁸ = 7611313 is a prime.

It is a d-powerful number, because it can be written as 7⁴ + 8⁷ + 7⁴ + 3⁸ + 4² + 5³ + 7⁸ .

It is not a weakly prime, because it can be changed into another prime (7873451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3936728 + 3936729.

It is an arithmetic number, because the mean of its divisors is an integer number (3936729).

Almost surely, 2^7873457 is an apocalyptic number.

It is an amenable number.

7873457 is a deficient number, since it is larger than the sum of its proper divisors (1).

7873457 is an equidigital number, since it uses as much as digits as its factorization.

7873457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 164640, while the sum is 41.

The square root of 7873457 is about 2805.9681038814. The cubic root of 7873457 is about 198.9398655032.

The spelling of 7873457 in words is "seven million, eight hundred seventy-three thousand, four hundred fifty-seven".