42547963 has 4 divisors (see below), whose sum is σ = 43026120. Its totient is φ = 42069808.

The previous prime is 42547951. The next prime is 42547987. The reversal of 42547963 is 36974524.

It is a happy number.

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 42547963 - 2⁹ = 42547451 is a prime.

It is a Duffinian number.

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (42547913) 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, 238945 + ... + 239122.

It is an arithmetic number, because the mean of its divisors is an integer number (10756530).

Almost surely, 2^42547963 is an apocalyptic number.

42547963 is a deficient number, since it is larger than the sum of its proper divisors (478157).

42547963 is an equidigital number, since it uses as much as digits as its factorization.

42547963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478156.

The product of its digits is 181440, while the sum is 40.

The square root of 42547963 is about 6522.8799621026. The cubic root of 42547963 is about 349.1078311472.

The spelling of 42547963 in words is "forty-two million, five hundred forty-seven thousand, nine hundred sixty-three".