42913971 has 6 divisors (see below), whose sum is σ = 61986860. Its totient is φ = 28609308.

The previous prime is 42913963. The next prime is 42913979. The reversal of 42913971 is 17931924.

42913971 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (42913963) and next prime (42913979).

It is not a de Polignac number, because 42913971 - 2³ = 42913963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42913979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2384101 + ... + 2384118.

Almost surely, 2^42913971 is an apocalyptic number.

42913971 is a deficient number, since it is larger than the sum of its proper divisors (19072889).

42913971 is a wasteful number, since it uses less digits than its factorization.

42913971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4768225 (or 4768222 counting only the distinct ones).

The product of its digits is 13608, while the sum is 36.

The square root of 42913971 is about 6550.8755903314. The cubic root of 42913971 is about 350.1060114244.

It can be divided in two parts, 429 and 13971, that added together give a square (14400 = 120²).

The spelling of 42913971 in words is "forty-two million, nine hundred thirteen thousand, nine hundred seventy-one".