74523737 has 2 divisors, whose sum is σ = 74523738. Its totient is φ = 74523736.

The previous prime is 74523697. The next prime is 74523739. The reversal of 74523737 is 73732547.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41011216 + 33512521 = 6404^2 + 5789^2 .

It is a cyclic number.

It is not a de Polignac number, because 74523737 - 2²⁰ = 73475161 is a prime.

Together with 74523739, it forms a pair of twin primes.

It is a Chen prime.

It is a pancake number, because a pancake can be divided into 74523737 parts by 12208 straight cuts.

It is a self number, because there is not a number n which added to its sum of digits gives 74523737.

It is not a weakly prime, because it can be changed into another prime (74523739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37261868 + 37261869.

It is an arithmetic number, because the mean of its divisors is an integer number (37261869).

Almost surely, 2^74523737 is an apocalyptic number.

It is an amenable number.

74523737 is a deficient number, since it is larger than the sum of its proper divisors (1).

74523737 is an equidigital number, since it uses as much as digits as its factorization.

74523737 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 123480, while the sum is 38.

The square root of 74523737 is about 8632.7131887953. The cubic root of 74523737 is about 420.8217791772.

The spelling of 74523737 in words is "seventy-four million, five hundred twenty-three thousand, seven hundred thirty-seven".