77230201 has 4 divisors (see below), whose sum is σ = 81773172. Its totient is φ = 72687232.

The previous prime is 77230157. The next prime is 77230217. The reversal of 77230201 is 10203277.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 44568976 + 32661225 = 6676^2 + 5715^2 .

It is a cyclic number.

It is not a de Polignac number, because 77230201 - 2¹³ = 77222009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77230261) 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 in 3 ways as a sum of consecutive naturals, for example, 2271460 + ... + 2271493.

It is an arithmetic number, because the mean of its divisors is an integer number (20443293).

Almost surely, 2^77230201 is an apocalyptic number.

It is an amenable number.

77230201 is a deficient number, since it is larger than the sum of its proper divisors (4542971).

77230201 is a wasteful number, since it uses less digits than its factorization.

77230201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4542970.

The product of its (nonzero) digits is 588, while the sum is 22.

The square root of 77230201 is about 8788.0715176881. The cubic root of 77230201 is about 425.8556252880.

Adding to 77230201 its reverse (10203277), we get a palindrome (87433478).

The spelling of 77230201 in words is "seventy-seven million, two hundred thirty thousand, two hundred one".