77327249 has 2 divisors, whose sum is σ = 77327250. Its totient is φ = 77327248.

The previous prime is 77327231. The next prime is 77327269. The reversal of 77327249 is 94272377.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56896849 + 20430400 = 7543^2 + 4520^2 .

It is a cyclic number.

It is not a de Polignac number, because 77327249 - 2¹² = 77323153 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (77327269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38663624 + 38663625.

It is an arithmetic number, because the mean of its divisors is an integer number (38663625).

Almost surely, 2^77327249 is an apocalyptic number.

It is an amenable number.

77327249 is a deficient number, since it is larger than the sum of its proper divisors (1).

77327249 is an equidigital number, since it uses as much as digits as its factorization.

77327249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 148176, while the sum is 41.

The square root of 77327249 is about 8793.5913596209. The cubic root of 77327249 is about 426.0339283226.

The spelling of 77327249 in words is "seventy-seven million, three hundred twenty-seven thousand, two hundred forty-nine".