74040077 has 2 divisors, whose sum is σ = 74040078. Its totient is φ = 74040076.

The previous prime is 74040073. The next prime is 74040097. The reversal of 74040077 is 77004047.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43414921 + 30625156 = 6589^2 + 5534^2 .

It is an emirp because it is prime and its reverse (77004047) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74040077 - 2² = 74040073 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74040073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37020038 + 37020039.

It is an arithmetic number, because the mean of its divisors is an integer number (37020039).

Almost surely, 2^74040077 is an apocalyptic number.

It is an amenable number.

74040077 is a deficient number, since it is larger than the sum of its proper divisors (1).

74040077 is an equidigital number, since it uses as much as digits as its factorization.

74040077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5488, while the sum is 29.

The square root of 74040077 is about 8604.6543800434. The cubic root of 74040077 is about 419.9094230224.

The spelling of 74040077 in words is "seventy-four million, forty thousand, seventy-seven".