74412739 has 2 divisors, whose sum is σ = 74412740. Its totient is φ = 74412738.

The previous prime is 74412727. The next prime is 74412743. The reversal of 74412739 is 93721447.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74412739 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 74412698 and 74412707.

It is not a weakly prime, because it can be changed into another prime (74412749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37206369 + 37206370.

It is an arithmetic number, because the mean of its divisors is an integer number (37206370).

Almost surely, 2^74412739 is an apocalyptic number.

74412739 is a deficient number, since it is larger than the sum of its proper divisors (1).

74412739 is an equidigital number, since it uses as much as digits as its factorization.

74412739 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 42336, while the sum is 37.

The square root of 74412739 is about 8626.2818757562. The cubic root of 74412739 is about 420.6127469611.

The spelling of 74412739 in words is "seventy-four million, four hundred twelve thousand, seven hundred thirty-nine".