74574673 has 2 divisors, whose sum is σ = 74574674. Its totient is φ = 74574672.

The previous prime is 74574659. The next prime is 74574691. The reversal of 74574673 is 37647547.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73153809 + 1420864 = 8553^2 + 1192^2 .

It is a cyclic number.

It is not a de Polignac number, because 74574673 - 2⁹ = 74574161 is a prime.

It is a super-2 number, since 2×74574673² = 11122763706113858, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (74514673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37287336 + 37287337.

It is an arithmetic number, because the mean of its divisors is an integer number (37287337).

Almost surely, 2^74574673 is an apocalyptic number.

It is an amenable number.

74574673 is a deficient number, since it is larger than the sum of its proper divisors (1).

74574673 is an equidigital number, since it uses as much as digits as its factorization.

74574673 is an evil number, because the sum of its binary digits is even.

The product of its digits is 493920, while the sum is 43.

The square root of 74574673 is about 8635.6628581713. The cubic root of 74574673 is about 420.9176327372.

The spelling of 74574673 in words is "seventy-four million, five hundred seventy-four thousand, six hundred seventy-three".