74823641 has 2 divisors, whose sum is σ = 74823642. Its totient is φ = 74823640.

The previous prime is 74823631. The next prime is 74823667. The reversal of 74823641 is 14632847.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 74736025 + 87616 = 8645^2 + 296^2 .

It is an emirp because it is prime and its reverse (14632847) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74823641 - 2¹⁰ = 74822617 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (74823631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37411820 + 37411821.

It is an arithmetic number, because the mean of its divisors is an integer number (37411821).

Almost surely, 2^74823641 is an apocalyptic number.

It is an amenable number.

74823641 is a deficient number, since it is larger than the sum of its proper divisors (1).

74823641 is an equidigital number, since it uses as much as digits as its factorization.

74823641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32256, while the sum is 35.

The square root of 74823641 is about 8650.0659535058. The cubic root of 74823641 is about 421.3855244632.

It can be divided in two parts, 748 and 23641, that added together give a cube (24389 = 29³).

The spelling of 74823641 in words is "seventy-four million, eight hundred twenty-three thousand, six hundred forty-one".