77348272 has 10 divisors (see below), whose sum is σ = 149862308. Its totient is φ = 38674128.

The previous prime is 77348269. The next prime is 77348273. The reversal of 77348272 is 27284377.

It is not an unprimeable number, because it can be changed into a prime (77348273) 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 as a sum of consecutive naturals, namely, 2417118 + ... + 2417149.

Almost surely, 2^77348272 is an apocalyptic number.

It is an amenable number.

77348272 is a deficient number, since it is larger than the sum of its proper divisors (72514036).

77348272 is a wasteful number, since it uses less digits than its factorization.

77348272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4834275 (or 4834269 counting only the distinct ones).

The product of its digits is 131712, while the sum is 40.

The square root of 77348272 is about 8794.7866375484. The cubic root of 77348272 is about 426.0725335139.

The spelling of 77348272 in words is "seventy-seven million, three hundred forty-eight thousand, two hundred seventy-two".