2057699 has 4 divisors (see below), whose sum is σ = 2351664. Its totient is φ = 1763736.

The previous prime is 2057689. The next prime is 2057701. The reversal of 2057699 is 9967502.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9967502 = 2 ⋅4983751.

It is a cyclic number.

It is not a de Polignac number, because 2057699 - 2⁴ = 2057683 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2057609) 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, 146972 + ... + 146985.

It is an arithmetic number, because the mean of its divisors is an integer number (587916).

2^2057699 is an apocalyptic number.

2057699 is a deficient number, since it is larger than the sum of its proper divisors (293965).

2057699 is an equidigital number, since it uses as much as digits as its factorization.

2057699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293964.

The product of its (nonzero) digits is 34020, while the sum is 38.

The square root of 2057699 is about 1434.4681941403. The cubic root of 2057699 is about 127.1922399113.

The spelling of 2057699 in words is "two million, fifty-seven thousand, six hundred ninety-nine".