77364361 has 4 divisors (see below), whose sum is σ = 77386500. Its totient is φ = 77342224.

The previous prime is 77364349. The next prime is 77364367. The reversal of 77364361 is 16346377.

77364361 = 6219² + 6220².

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 38688400 + 38675961 = 6220^2 + 6219^2 .

It is a cyclic number.

It is not a de Polignac number, because 77364361 - 2⁹ = 77363849 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 77364361.

It is not an unprimeable number, because it can be changed into a prime (77364367) 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, 4546 + ... + 13243.

It is an arithmetic number, because the mean of its divisors is an integer number (19346625).

Almost surely, 2^77364361 is an apocalyptic number.

77364361 is the 6220-th centered square number.

It is an amenable number.

77364361 is a deficient number, since it is larger than the sum of its proper divisors (22139).

77364361 is a wasteful number, since it uses less digits than its factorization.

77364361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22138.

The product of its digits is 63504, while the sum is 37.

The square root of 77364361 is about 8795.7012796024. The cubic root of 77364361 is about 426.1020735220.

The spelling of 77364361 in words is "seventy-seven million, three hundred sixty-four thousand, three hundred sixty-one".