77323449 has 16 divisors (see below), whose sum is σ = 120051072. Its totient is φ = 43350528.

The previous prime is 77323423. The next prime is 77323459. The reversal of 77323449 is 94432377.

It is not a de Polignac number, because 77323449 - 2¹⁶ = 77257913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (77323409) 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, 33624 + ... + 35849.

It is an arithmetic number, because the mean of its divisors is an integer number (7503192).

Almost surely, 2^77323449 is an apocalyptic number.

It is an amenable number.

77323449 is a deficient number, since it is larger than the sum of its proper divisors (42727623).

77323449 is a wasteful number, since it uses less digits than its factorization.

77323449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69536.

The product of its digits is 127008, while the sum is 39.

The square root of 77323449 is about 8793.3752905241. The cubic root of 77323449 is about 426.0269495173.

The spelling of 77323449 in words is "seventy-seven million, three hundred twenty-three thousand, four hundred forty-nine".