42679747 has 16 divisors (see below), whose sum is σ = 47480832. Its totient is φ = 38041920.

The previous prime is 42679739. The next prime is 42679751. The reversal of 42679747 is 74797624.

It is a cyclic number.

It is not a de Polignac number, because 42679747 - 2³ = 42679739 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42679697 and 42679706.

It is not an unprimeable number, because it can be changed into a prime (42679727) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 191278 + ... + 191500.

It is an arithmetic number, because the mean of its divisors is an integer number (2967552).

Almost surely, 2^42679747 is an apocalyptic number.

42679747 is a deficient number, since it is larger than the sum of its proper divisors (4801085).

42679747 is a wasteful number, since it uses less digits than its factorization.

42679747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498.

The product of its digits is 592704, while the sum is 46.

The square root of 42679747 is about 6532.9738251427. The cubic root of 42679747 is about 349.4678907576.

The spelling of 42679747 in words is "forty-two million, six hundred seventy-nine thousand, seven hundred forty-seven".