42370687 has 4 divisors (see below), whose sum is σ = 42454440. Its totient is φ = 42286936.

The previous prime is 42370649. The next prime is 42370693. The reversal of 42370687 is 78607324.

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 42370687 - 2¹¹ = 42368639 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 (42370607) 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, 41113 + ... + 42130.

It is an arithmetic number, because the mean of its divisors is an integer number (10613610).

Almost surely, 2^42370687 is an apocalyptic number.

42370687 is a deficient number, since it is larger than the sum of its proper divisors (83753).

42370687 is an equidigital number, since it uses as much as digits as its factorization.

42370687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83752.

The product of its (nonzero) digits is 56448, while the sum is 37.

The square root of 42370687 is about 6509.2769951816. The cubic root of 42370687 is about 348.6223038529.

The spelling of 42370687 in words is "forty-two million, three hundred seventy thousand, six hundred eighty-seven".