74780201 has 2 divisors, whose sum is σ = 74780202. Its totient is φ = 74780200.

The previous prime is 74780197. The next prime is 74780207. The reversal of 74780201 is 10208747.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 58369600 + 16410601 = 7640^2 + 4051^2 .

It is an emirp because it is prime and its reverse (10208747) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74780201 - 2² = 74780197 is a prime.

It is not a weakly prime, because it can be changed into another prime (74780207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37390100 + 37390101.

It is an arithmetic number, because the mean of its divisors is an integer number (37390101).

Almost surely, 2^74780201 is an apocalyptic number.

It is an amenable number.

74780201 is a deficient number, since it is larger than the sum of its proper divisors (1).

74780201 is an equidigital number, since it uses as much as digits as its factorization.

74780201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3136, while the sum is 29.

The square root of 74780201 is about 8647.5546254418. The cubic root of 74780201 is about 421.3039614238.

Adding to 74780201 its reverse (10208747), we get a palindrome (84988948).

The spelling of 74780201 in words is "seventy-four million, seven hundred eighty thousand, two hundred one".