77385011 has 4 divisors (see below), whose sum is σ = 84420024. Its totient is φ = 70350000.

The previous prime is 77384977. The next prime is 77385023. The reversal of 77385011 is 11058377.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 77385011 - 2⁶ = 77384947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77385911) 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, 3517490 + ... + 3517511.

It is an arithmetic number, because the mean of its divisors is an integer number (21105006).

Almost surely, 2^77385011 is an apocalyptic number.

77385011 is a deficient number, since it is larger than the sum of its proper divisors (7035013).

77385011 is a wasteful number, since it uses less digits than its factorization.

77385011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7035012.

The product of its (nonzero) digits is 5880, while the sum is 32.

The square root of 77385011 is about 8796.8750701599. The cubic root of 77385011 is about 426.1399816964.

The spelling of 77385011 in words is "seventy-seven million, three hundred eighty-five thousand, eleven".