42079313 has 2 divisors, whose sum is σ = 42079314. Its totient is φ = 42079312.

The previous prime is 42079277. The next prime is 42079333. The reversal of 42079313 is 31397024.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36566209 + 5513104 = 6047^2 + 2348^2 .

It is a cyclic number.

It is not a de Polignac number, because 42079313 - 2¹² = 42075217 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (42079333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21039656 + 21039657.

It is an arithmetic number, because the mean of its divisors is an integer number (21039657).

Almost surely, 2^42079313 is an apocalyptic number.

It is an amenable number.

42079313 is a deficient number, since it is larger than the sum of its proper divisors (1).

42079313 is an equidigital number, since it uses as much as digits as its factorization.

42079313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 42079313 is about 6486.8569430811. The cubic root of 42079313 is about 347.8213317445.

The spelling of 42079313 in words is "forty-two million, seventy-nine thousand, three hundred thirteen".