74604949 has 2 divisors, whose sum is σ = 74604950. Its totient is φ = 74604948.

The previous prime is 74604917. The next prime is 74604961. The reversal of 74604949 is 94940647.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64883025 + 9721924 = 8055^2 + 3118^2 .

It is an emirp because it is prime and its reverse (94940647) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74604949 - 2⁵ = 74604917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74604979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37302474 + 37302475.

It is an arithmetic number, because the mean of its divisors is an integer number (37302475).

Almost surely, 2^74604949 is an apocalyptic number.

It is an amenable number.

74604949 is a deficient number, since it is larger than the sum of its proper divisors (1).

74604949 is an equidigital number, since it uses as much as digits as its factorization.

74604949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 217728, while the sum is 43.

The square root of 74604949 is about 8637.4156435823. The cubic root of 74604949 is about 420.9745867384.

The spelling of 74604949 in words is "seventy-four million, six hundred four thousand, nine hundred forty-nine".