61744339 has 2 divisors, whose sum is σ = 61744340. Its totient is φ = 61744338.

The previous prime is 61744307. The next prime is 61744399. The reversal of 61744339 is 93344716.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61744339 - 2⁵ = 61744307 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61744298 and 61744307.

It is not a weakly prime, because it can be changed into another prime (61744399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30872169 + 30872170.

It is an arithmetic number, because the mean of its divisors is an integer number (30872170).

Almost surely, 2^61744339 is an apocalyptic number.

61744339 is a deficient number, since it is larger than the sum of its proper divisors (1).

61744339 is an equidigital number, since it uses as much as digits as its factorization.

61744339 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54432, while the sum is 37.

The square root of 61744339 is about 7857.7566136907. The cubic root of 61744339 is about 395.2443907688.

The spelling of 61744339 in words is "sixty-one million, seven hundred forty-four thousand, three hundred thirty-nine".