2049947 has 4 divisors (see below), whose sum is σ = 2052960. Its totient is φ = 2046936.

The previous prime is 2049941. The next prime is 2049953. The reversal of 2049947 is 7499402.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (2049941) and next prime (2049953).

It is a cyclic number.

It is not a de Polignac number, because 2049947 - 2¹² = 2045851 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2049941) 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, 53 + ... + 2025.

It is an arithmetic number, because the mean of its divisors is an integer number (513240).

2^2049947 is an apocalyptic number.

2049947 is a deficient number, since it is larger than the sum of its proper divisors (3013).

2049947 is a wasteful number, since it uses less digits than its factorization.

2049947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3012.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 2049947 is about 1431.7635978052. The cubic root of 2049947 is about 127.0323145084.

The spelling of 2049947 in words is "two million, forty-nine thousand, nine hundred forty-seven".