4007057 has 4 divisors (see below), whose sum is σ = 4034100. Its totient is φ = 3980016.

The previous prime is 4007039. The next prime is 4007071. The reversal of 4007057 is 7507004.

It is a happy number.

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 2262016 + 1745041 = 1504^2 + 1321^2 .

It is a cyclic number.

It is not a de Polignac number, because 4007057 - 2⁶ = 4006993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4007077) 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, 13298 + ... + 13595.

It is an arithmetic number, because the mean of its divisors is an integer number (1008525).

Almost surely, 2^4007057 is an apocalyptic number.

It is an amenable number.

4007057 is a deficient number, since it is larger than the sum of its proper divisors (27043).

4007057 is a wasteful number, since it uses less digits than its factorization.

4007057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27042.

The product of its (nonzero) digits is 980, while the sum is 23.

The square root of 4007057 is about 2001.7634725411. The cubic root of 4007057 is about 158.8334027618.

The spelling of 4007057 in words is "four million, seven thousand, fifty-seven".