1057839 has 8 divisors (see below), whose sum is σ = 1471872. Its totient is φ = 674520.

The previous prime is 1057831. The next prime is 1057853. The reversal of 1057839 is 9387501.

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

It is not a de Polignac number, because 1057839 - 2³ = 1057831 is a prime.

It is a super-2 number, since 2×1057839² = 2238046699842, which contains 22 as substring.

1057839 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1057831) 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, 7597 + ... + 7734.

It is an arithmetic number, because the mean of its divisors is an integer number (183984).

2^1057839 is an apocalyptic number.

1057839 is a deficient number, since it is larger than the sum of its proper divisors (414033).

1057839 is a wasteful number, since it uses less digits than its factorization.

1057839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15357.

The product of its (nonzero) digits is 7560, while the sum is 33.

The square root of 1057839 is about 1028.5130042931. The cubic root of 1057839 is about 101.8919463196.

The spelling of 1057839 in words is "one million, fifty-seven thousand, eight hundred thirty-nine".