42047767 has 8 divisors (see below), whose sum is σ = 43601040. Its totient is φ = 40501440.

The previous prime is 42047743. The next prime is 42047773. The reversal of 42047767 is 76774024.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 42047767 - 2¹¹ = 42045719 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 (42047737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12763 + ... + 15715.

It is an arithmetic number, because the mean of its divisors is an integer number (5450130).

Almost surely, 2^42047767 is an apocalyptic number.

42047767 is a deficient number, since it is larger than the sum of its proper divisors (1553273).

42047767 is a wasteful number, since it uses less digits than its factorization.

42047767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3473.

The product of its (nonzero) digits is 65856, while the sum is 37.

The square root of 42047767 is about 6484.4249552293. The cubic root of 42047767 is about 347.7343918366.

The spelling of 42047767 in words is "forty-two million, forty-seven thousand, seven hundred sixty-seven".