77230449 has 16 divisors (see below), whose sum is σ = 114618240. Its totient is φ = 51395760.

The previous prime is 77230411. The next prime is 77230457. The reversal of 77230449 is 94403277.

It is not a de Polignac number, because 77230449 - 2¹¹ = 77228401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (77230409) 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 15 ways as a sum of consecutive naturals, for example, 15259 + ... + 19679.

It is an arithmetic number, because the mean of its divisors is an integer number (7163640).

Almost surely, 2^77230449 is an apocalyptic number.

It is an amenable number.

77230449 is a deficient number, since it is larger than the sum of its proper divisors (37387791).

77230449 is a wasteful number, since it uses less digits than its factorization.

77230449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5077 (or 5071 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The square root of 77230449 is about 8788.0856277121. The cubic root of 77230449 is about 425.8560811204.

The spelling of 77230449 in words is "seventy-seven million, two hundred thirty thousand, four hundred forty-nine".