61567339 has 2 divisors, whose sum is σ = 61567340. Its totient is φ = 61567338.

The previous prime is 61567313. The next prime is 61567349. The reversal of 61567339 is 93376516.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61567339 - 2¹¹ = 61565291 is a prime.

It is not a weakly prime, because it can be changed into another prime (61567349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30783669 + 30783670.

It is an arithmetic number, because the mean of its divisors is an integer number (30783670).

Almost surely, 2^61567339 is an apocalyptic number.

61567339 is a deficient number, since it is larger than the sum of its proper divisors (1).

61567339 is an equidigital number, since it uses as much as digits as its factorization.

61567339 is an evil number, because the sum of its binary digits is even.

The product of its digits is 102060, while the sum is 40.

The square root of 61567339 is about 7846.4857738990. The cubic root of 61567339 is about 394.8663522646.

The spelling of 61567339 in words is "sixty-one million, five hundred sixty-seven thousand, three hundred thirty-nine".