74000077 has 2 divisors, whose sum is σ = 74000078. Its totient is φ = 74000076.

The previous prime is 74000057. The next prime is 74000081. The reversal of 74000077 is 77000047.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45846441 + 28153636 = 6771^2 + 5306^2 .

It is an emirp because it is prime and its reverse (77000047) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74000077 is a prime.

It is a super-2 number, since 2×74000077² = 10952022792011858, which contains 22 as substring.

74000077 is a modest number, since divided by 77 gives 74 as remainder.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74000057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37000038 + 37000039.

It is an arithmetic number, because the mean of its divisors is an integer number (37000039).

Almost surely, 2^74000077 is an apocalyptic number.

It is an amenable number.

74000077 is a deficient number, since it is larger than the sum of its proper divisors (1).

74000077 is an equidigital number, since it uses as much as digits as its factorization.

74000077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1372, while the sum is 25.

The square root of 74000077 is about 8602.3297425756. The cubic root of 74000077 is about 419.8337909988.

The spelling of 74000077 in words is "seventy-four million, seventy-seven", and thus it is an aban number.