74648677 has 2 divisors, whose sum is σ = 74648678. Its totient is φ = 74648676.

The previous prime is 74648669. The next prime is 74648687. The reversal of 74648677 is 77684647.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66814276 + 7834401 = 8174^2 + 2799^2 .

It is an emirp because it is prime and its reverse (77684647) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74648677 - 2³ = 74648669 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 74648677.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74648617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37324338 + 37324339.

It is an arithmetic number, because the mean of its divisors is an integer number (37324339).

Almost surely, 2^74648677 is an apocalyptic number.

It is an amenable number.

74648677 is a deficient number, since it is larger than the sum of its proper divisors (1).

74648677 is an equidigital number, since it uses as much as digits as its factorization.

74648677 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1580544, while the sum is 49.

The square root of 74648677 is about 8639.9465854830. The cubic root of 74648677 is about 421.0568189120.

The spelling of 74648677 in words is "seventy-four million, six hundred forty-eight thousand, six hundred seventy-seven".