2057739 has 8 divisors (see below), whose sum is σ = 2754192. Its totient is φ = 1366560.

The previous prime is 2057729. The next prime is 2057747. The reversal of 2057739 is 9377502.

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

It is not a de Polignac number, because 2057739 - 2⁴ = 2057723 is a prime.

It is an Ulam number.

2057739 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2057729) 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, 292 + ... + 2049.

It is an arithmetic number, because the mean of its divisors is an integer number (344274).

2^2057739 is an apocalyptic number.

2057739 is a deficient number, since it is larger than the sum of its proper divisors (696453).

2057739 is a wasteful number, since it uses less digits than its factorization.

2057739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2637.

The product of its (nonzero) digits is 13230, while the sum is 33.

The square root of 2057739 is about 1434.4821365217. The cubic root of 2057739 is about 127.1930640773.

The spelling of 2057739 in words is "two million, fifty-seven thousand, seven hundred thirty-nine".