42346861 has 2 divisors, whose sum is σ = 42346862. Its totient is φ = 42346860.

The previous prime is 42346831. The next prime is 42346867. The reversal of 42346861 is 16864324.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33756100 + 8590761 = 5810^2 + 2931^2 .

It is a cyclic number.

It is not a de Polignac number, because 42346861 - 2²⁵ = 8792429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42346867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21173430 + 21173431.

It is an arithmetic number, because the mean of its divisors is an integer number (21173431).

Almost surely, 2^42346861 is an apocalyptic number.

It is an amenable number.

42346861 is a deficient number, since it is larger than the sum of its proper divisors (1).

42346861 is an equidigital number, since it uses as much as digits as its factorization.

42346861 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27648, while the sum is 34.

The square root of 42346861 is about 6507.4465806490. The cubic root of 42346861 is about 348.5569455197.

The spelling of 42346861 in words is "forty-two million, three hundred forty-six thousand, eight hundred sixty-one".