42789263 has 4 divisors (see below), whose sum is σ = 46679208. Its totient is φ = 38899320.

The previous prime is 42789247. The next prime is 42789277. The reversal of 42789263 is 36298724.

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 42789263 - 2⁴ = 42789247 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42789263.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42789203) 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, 1944956 + ... + 1944977.

It is an arithmetic number, because the mean of its divisors is an integer number (11669802).

Almost surely, 2^42789263 is an apocalyptic number.

42789263 is a deficient number, since it is larger than the sum of its proper divisors (3889945).

42789263 is a wasteful number, since it uses less digits than its factorization.

42789263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3889944.

The product of its digits is 145152, while the sum is 41.

The square root of 42789263 is about 6541.3502428780. The cubic root of 42789263 is about 349.7665463594.

The spelling of 42789263 in words is "forty-two million, seven hundred eighty-nine thousand, two hundred sixty-three".