5642047 has 4 divisors (see below), whose sum is σ = 5647320. Its totient is φ = 5636776.

The previous prime is 5642041. The next prime is 5642053. The reversal of 5642047 is 7402465.

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 (5642041) and next prime (5642053).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5642047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5642041) 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, 397 + ... + 3382.

It is an arithmetic number, because the mean of its divisors is an integer number (1411830).

Almost surely, 2^5642047 is an apocalyptic number.

5642047 is a deficient number, since it is larger than the sum of its proper divisors (5273).

5642047 is a wasteful number, since it uses less digits than its factorization.

5642047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5272.

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 5642047 is about 2375.2993495558. The cubic root of 5642047 is about 178.0241414044.

The spelling of 5642047 in words is "five million, six hundred forty-two thousand, forty-seven".