42789065 has 32 divisors (see below), whose sum is σ = 58665600. Its totient is φ = 29675520.

The previous prime is 42789053. The next prime is 42789079. The reversal of 42789065 is 56098724.

It is not a de Polignac number, because 42789065 - 2⁴ = 42789049 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 221609 + ... + 221801.

It is an arithmetic number, because the mean of its divisors is an integer number (1833300).

Almost surely, 2^42789065 is an apocalyptic number.

It is an amenable number.

42789065 is a deficient number, since it is larger than the sum of its proper divisors (15876535).

42789065 is a wasteful number, since it uses less digits than its factorization.

42789065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 42789065 is about 6541.3351083705. The cubic root of 42789065 is about 349.7660068636.

The spelling of 42789065 in words is "forty-two million, seven hundred eighty-nine thousand, sixty-five".