42787735 has 4 divisors (see below), whose sum is σ = 51345288. Its totient is φ = 34230184.

The previous prime is 42787727. The next prime is 42787747. The reversal of 42787735 is 53778724.

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 42787735 - 2³ = 42787727 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42787691 and 42787700.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4278769 + ... + 4278778.

It is an arithmetic number, because the mean of its divisors is an integer number (12836322).

Almost surely, 2^42787735 is an apocalyptic number.

42787735 is a deficient number, since it is larger than the sum of its proper divisors (8557553).

42787735 is an equidigital number, since it uses as much as digits as its factorization.

42787735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8557552.

The product of its digits is 329280, while the sum is 43.

The square root of 42787735 is about 6541.2334463769. The cubic root of 42787735 is about 349.7623829346.

The spelling of 42787735 in words is "forty-two million, seven hundred eighty-seven thousand, seven hundred thirty-five".