42706887 has 8 divisors (see below), whose sum is σ = 57179760. Its totient is φ = 28352640.

The previous prime is 42706799. The next prime is 42706913. The reversal of 42706887 is 78860724.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42706887 - 2⁷ = 42706759 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42706087) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28812 + ... + 30257.

It is an arithmetic number, because the mean of its divisors is an integer number (7147470).

Almost surely, 2^42706887 is an apocalyptic number.

42706887 is a deficient number, since it is larger than the sum of its proper divisors (14472873).

42706887 is a wasteful number, since it uses less digits than its factorization.

42706887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59313.

The product of its (nonzero) digits is 150528, while the sum is 42.

The square root of 42706887 is about 6535.0506501480. The cubic root of 42706887 is about 349.5419504660.

The spelling of 42706887 in words is "forty-two million, seven hundred six thousand, eight hundred eighty-seven".