74606737 has 2 divisors, whose sum is σ = 74606738. Its totient is φ = 74606736.

The previous prime is 74606683. The next prime is 74606743. The reversal of 74606737 is 73760647.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69205761 + 5400976 = 8319^2 + 2324^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74606737 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 74606737.

It is not a weakly prime, because it can be changed into another prime (74606747) 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, 37303368 + 37303369.

It is an arithmetic number, because the mean of its divisors is an integer number (37303369).

Almost surely, 2^74606737 is an apocalyptic number.

It is an amenable number.

74606737 is a deficient number, since it is larger than the sum of its proper divisors (1).

74606737 is an equidigital number, since it uses as much as digits as its factorization.

74606737 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 148176, while the sum is 40.

The square root of 74606737 is about 8637.5191461438. The cubic root of 74606737 is about 420.9779497707.

The spelling of 74606737 in words is "seventy-four million, six hundred six thousand, seven hundred thirty-seven".