42876739 has 4 divisors (see below), whose sum is σ = 43092400. Its totient is φ = 42661080.

The previous prime is 42876683. The next prime is 42876763. The reversal of 42876739 is 93767824.

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 42876739 - 2¹⁹ = 42352451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42876139) 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, 107532 + ... + 107929.

It is an arithmetic number, because the mean of its divisors is an integer number (10773100).

Almost surely, 2^42876739 is an apocalyptic number.

42876739 is a deficient number, since it is larger than the sum of its proper divisors (215661).

42876739 is a wasteful number, since it uses less digits than its factorization.

42876739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215660.

The product of its digits is 508032, while the sum is 46.

The square root of 42876739 is about 6548.0332161650. The cubic root of 42876739 is about 350.0047319088.

It can be divided in two parts, 4287 and 6739, that added together give a triangular number (11026 = T₁₄₈).

The spelling of 42876739 in words is "forty-two million, eight hundred seventy-six thousand, seven hundred thirty-nine".