42966979 has 6 divisors (see below), whose sum is σ = 47228300. Its totient is φ = 39060780.

The previous prime is 42966907. The next prime is 42967003. The reversal of 42966979 is 97966924.

It is not a de Polignac number, because 42966979 - 2¹¹ = 42964931 is a prime.

It is a super-2 number, since 2×42966979² = 3692322568772882, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42966179) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 177429 + ... + 177670.

Almost surely, 2^42966979 is an apocalyptic number.

42966979 is a deficient number, since it is larger than the sum of its proper divisors (4261321).

42966979 is a wasteful number, since it uses less digits than its factorization.

42966979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355121 (or 355110 counting only the distinct ones).

The product of its digits is 1469664, while the sum is 52.

The square root of 42966979 is about 6554.9202130918. The cubic root of 42966979 is about 350.2501042303.

Subtracting 42966979 from its reverse (97966924), we obtain a palindrome (54999945).

The spelling of 42966979 in words is "forty-two million, nine hundred sixty-six thousand, nine hundred seventy-nine".