77328775 has 6 divisors (see below), whose sum is σ = 95887712. Its totient is φ = 61863000.

The previous prime is 77328773. The next prime is 77328781. The reversal of 77328775 is 57782377.

It is not a de Polignac number, because 77328775 - 2¹ = 77328773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77328773) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1546551 + ... + 1546600.

Almost surely, 2^77328775 is an apocalyptic number.

77328775 is a deficient number, since it is larger than the sum of its proper divisors (18558937).

77328775 is a wasteful number, since it uses less digits than its factorization.

77328775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3093161 (or 3093156 counting only the distinct ones).

The product of its digits is 576240, while the sum is 46.

The square root of 77328775 is about 8793.6781269273. The cubic root of 77328775 is about 426.0367307995.

The spelling of 77328775 in words is "seventy-seven million, three hundred twenty-eight thousand, seven hundred seventy-five".