4073857 has 4 divisors (see below), whose sum is σ = 4083156. Its totient is φ = 4064560.

The previous prime is 4073851. The next prime is 4073873. The reversal of 4073857 is 7583704.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3154176 + 919681 = 1776^2 + 959^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4073857 is a prime.

It is a Duffinian number.

4073857 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4073851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3958 + ... + 4879.

It is an arithmetic number, because the mean of its divisors is an integer number (1020789).

Almost surely, 2^4073857 is an apocalyptic number.

It is an amenable number.

4073857 is a deficient number, since it is larger than the sum of its proper divisors (9299).

4073857 is an equidigital number, since it uses as much as digits as its factorization.

4073857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9298.

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 4073857 is about 2018.3797957768. The cubic root of 4073857 is about 159.7111585677.

The spelling of 4073857 in words is "four million, seventy-three thousand, eight hundred fifty-seven".