42347061 has 12 divisors (see below), whose sum is σ = 61277580. Its totient is φ = 28180800.

The previous prime is 42347059. The next prime is 42347087. The reversal of 42347061 is 16074324.

It can be written as a sum of positive squares in 2 ways, for example, as 20304036 + 22043025 = 4506^2 + 4695^2 .

It is not a de Polignac number, because 42347061 - 2¹ = 42347059 is a prime.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42347021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1495 + ... + 9323.

It is an arithmetic number, because the mean of its divisors is an integer number (5106465).

Almost surely, 2^42347061 is an apocalyptic number.

It is an amenable number.

42347061 is a deficient number, since it is larger than the sum of its proper divisors (18930519).

42347061 is a wasteful number, since it uses less digits than its factorization.

42347061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8436 (or 8433 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 42347061 is about 6507.4619476413. The cubic root of 42347061 is about 348.5574942520.

The spelling of 42347061 in words is "forty-two million, three hundred forty-seven thousand, sixty-one".