42479911 has 2 divisors, whose sum is σ = 42479912. Its totient is φ = 42479910.

The previous prime is 42479903. The next prime is 42479917. The reversal of 42479911 is 11997424.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42479911 - 2³ = 42479903 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42479917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21239955 + 21239956.

It is an arithmetic number, because the mean of its divisors is an integer number (21239956).

Almost surely, 2^42479911 is an apocalyptic number.

42479911 is a deficient number, since it is larger than the sum of its proper divisors (1).

42479911 is an equidigital number, since it uses as much as digits as its factorization.

42479911 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 37.

The square root of 42479911 is about 6517.6614671215. The cubic root of 42479911 is about 348.9216086525.

The spelling of 42479911 in words is "forty-two million, four hundred seventy-nine thousand, nine hundred eleven".