61074439 has 2 divisors, whose sum is σ = 61074440. Its totient is φ = 61074438.

The previous prime is 61074373. The next prime is 61074443. The reversal of 61074439 is 93447016.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61074439 - 2¹⁵ = 61041671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61074469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30537219 + 30537220.

It is an arithmetic number, because the mean of its divisors is an integer number (30537220).

Almost surely, 2^61074439 is an apocalyptic number.

61074439 is a deficient number, since it is larger than the sum of its proper divisors (1).

61074439 is an equidigital number, since it uses as much as digits as its factorization.

61074439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 61074439 is about 7815.0136916067. The cubic root of 61074439 is about 393.8097783097.

The spelling of 61074439 in words is "sixty-one million, seventy-four thousand, four hundred thirty-nine".