77268219 has 16 divisors (see below), whose sum is σ = 119501568. Its totient is φ = 43493472.

The previous prime is 77268203. The next prime is 77268221. The reversal of 77268219 is 91286277.

It is not a de Polignac number, because 77268219 - 2⁴ = 77268203 is a prime.

It is a super-2 number, since 2×77268219² = 11940755334863922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (77268239) 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, 26052 + ... + 28865.

It is an arithmetic number, because the mean of its divisors is an integer number (7468848).

Almost surely, 2^77268219 is an apocalyptic number.

77268219 is a deficient number, since it is larger than the sum of its proper divisors (42233349).

77268219 is a wasteful number, since it uses less digits than its factorization.

77268219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54994.

The product of its digits is 84672, while the sum is 42.

The square root of 77268219 is about 8790.2342972187. The cubic root of 77268219 is about 425.9254922703.

The spelling of 77268219 in words is "seventy-seven million, two hundred sixty-eight thousand, two hundred nineteen".