77094449 has 4 divisors (see below), whose sum is σ = 77315700. Its totient is φ = 76873200.

The previous prime is 77094443. The next prime is 77094481. The reversal of 77094449 is 94449077.

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 71487025 + 5607424 = 8455^2 + 2368^2 .

It is a cyclic number.

It is not a de Polignac number, because 77094449 - 2²⁰ = 76045873 is a prime.

It is a super-2 number, since 2×77094449² = 11887108133227202, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (77094443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110102 + ... + 110799.

It is an arithmetic number, because the mean of its divisors is an integer number (19328925).

Almost surely, 2^77094449 is an apocalyptic number.

It is an amenable number.

77094449 is a deficient number, since it is larger than the sum of its proper divisors (221251).

77094449 is a wasteful number, since it uses less digits than its factorization.

77094449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221250.

The product of its (nonzero) digits is 254016, while the sum is 44.

The square root of 77094449 is about 8780.3444693247. The cubic root of 77094449 is about 425.6059619109.

The spelling of 77094449 in words is "seventy-seven million, ninety-four thousand, four hundred forty-nine".