42162647 has 4 divisors (see below), whose sum is σ = 43302216. Its totient is φ = 41023080.

The previous prime is 42162643. The next prime is 42162751. The reversal of 42162647 is 74626124.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42162647 - 2² = 42162643 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 (42162641) 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, 569729 + ... + 569802.

It is an arithmetic number, because the mean of its divisors is an integer number (10825554).

Almost surely, 2^42162647 is an apocalyptic number.

42162647 is a deficient number, since it is larger than the sum of its proper divisors (1139569).

42162647 is a wasteful number, since it uses less digits than its factorization.

42162647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1139568.

The product of its digits is 16128, while the sum is 32.

The square root of 42162647 is about 6493.2770617000. The cubic root of 42162647 is about 348.0507891477.

The spelling of 42162647 in words is "forty-two million, one hundred sixty-two thousand, six hundred forty-seven".