4012857 has 24 divisors (see below), whose sum is σ = 6306560. Its totient is φ = 2449440.

The previous prime is 4012847. The next prime is 4012861. The reversal of 4012857 is 7582104.

It is not a de Polignac number, because 4012857 - 2⁸ = 4012601 is a prime.

It is a super-2 number, since 2×4012857² = 32206042604898, which contains 22 as substring.

It is a Duffinian number.

4012857 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 4012857.

It is not an unprimeable number, because it can be changed into a prime (4012837) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4923 + ... + 5679.

Almost surely, 2^4012857 is an apocalyptic number.

It is an amenable number.

4012857 is a deficient number, since it is larger than the sum of its proper divisors (2293703).

4012857 is a wasteful number, since it uses less digits than its factorization.

4012857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 813 (or 810 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 4012857 is about 2003.2116712919. The cubic root of 4012857 is about 158.9100000928.

The spelling of 4012857 in words is "four million, twelve thousand, eight hundred fifty-seven".