1047857 has 8 divisors (see below), whose sum is σ = 1131840. Its totient is φ = 967120.

The previous prime is 1047841. The next prime is 1047859. The reversal of 1047857 is 7587401.

1047857 = 9² + 10² + ... + 146².

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1047857 - 2⁴ = 1047841 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (1047859) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119 + ... + 1452.

It is an arithmetic number, because the mean of its divisors is an integer number (141480).

2^1047857 is an apocalyptic number.

It is an amenable number.

1047857 is a deficient number, since it is larger than the sum of its proper divisors (83983).

1047857 is a wasteful number, since it uses less digits than its factorization.

1047857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1623.

The product of its (nonzero) digits is 7840, while the sum is 32.

The square root of 1047857 is about 1023.6488655784. The cubic root of 1047857 is about 101.5704413672.

The spelling of 1047857 in words is "one million, forty-seven thousand, eight hundred fifty-seven".