74065837 has 2 divisors, whose sum is σ = 74065838. Its totient is φ = 74065836.

The previous prime is 74065829. The next prime is 74065841. The reversal of 74065837 is 73856047.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 74063236 + 2601 = 8606^2 + 51^2 .

It is a cyclic number.

It is not a de Polignac number, because 74065837 - 2³ = 74065829 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 74065837.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74065867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37032918 + 37032919.

It is an arithmetic number, because the mean of its divisors is an integer number (37032919).

Almost surely, 2^74065837 is an apocalyptic number.

It is an amenable number.

74065837 is a deficient number, since it is larger than the sum of its proper divisors (1).

74065837 is an equidigital number, since it uses as much as digits as its factorization.

74065837 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 141120, while the sum is 40.

The square root of 74065837 is about 8606.1511141741. The cubic root of 74065837 is about 419.9581156267.

The spelling of 74065837 in words is "seventy-four million, sixty-five thousand, eight hundred thirty-seven".