77713211 has 16 divisors (see below), whose sum is σ = 83959200. Its totient is φ = 71705088.

The previous prime is 77713201. The next prime is 77713217. The reversal of 77713211 is 11231777.

It is a de Polignac number, because none of the positive numbers 2^k-77713211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77713217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 230435 + ... + 230771.

It is an arithmetic number, because the mean of its divisors is an integer number (5247450).

Almost surely, 2^77713211 is an apocalyptic number.

77713211 is a deficient number, since it is larger than the sum of its proper divisors (6245989).

77713211 is a wasteful number, since it uses less digits than its factorization.

77713211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638.

The product of its digits is 2058, while the sum is 29.

The square root of 77713211 is about 8815.5096846410. The cubic root of 77713211 is about 426.7415705761.

Adding to 77713211 its reverse (11231777), we get a palindrome (88944988).

The spelling of 77713211 in words is "seventy-seven million, seven hundred thirteen thousand, two hundred eleven".