42675779 has 4 divisors (see below), whose sum is σ = 42788760. Its totient is φ = 42562800.

The previous prime is 42675769. The next prime is 42675799. The reversal of 42675779 is 97757624.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42675779 is a prime.

It is a super-2 number, since 2×42675779² = 3642444226513682, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42675709) 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, 55922 + ... + 56679.

It is an arithmetic number, because the mean of its divisors is an integer number (10697190).

Almost surely, 2^42675779 is an apocalyptic number.

42675779 is a deficient number, since it is larger than the sum of its proper divisors (112981).

42675779 is a wasteful number, since it uses less digits than its factorization.

42675779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112980.

The product of its digits is 740880, while the sum is 47.

The square root of 42675779 is about 6532.6701279033. The cubic root of 42675779 is about 349.4570602375.

The spelling of 42675779 in words is "forty-two million, six hundred seventy-five thousand, seven hundred seventy-nine".