389354777 has 4 divisors (see below), whose sum is σ = 444976896. Its totient is φ = 333732660.

The previous prime is 389354767. The next prime is 389354827. The reversal of 389354777 is 777453983.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-389354777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (389354717) 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, 27811049 + ... + 27811062.

It is an arithmetic number, because the mean of its divisors is an integer number (111244224).

Almost surely, 2^389354777 is an apocalyptic number.

It is an amenable number.

389354777 is a deficient number, since it is larger than the sum of its proper divisors (55622119).

389354777 is an equidigital number, since it uses as much as digits as its factorization.

389354777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55622118.

The product of its digits is 4445280, while the sum is 53.

The square root of 389354777 is about 19732.0748275492. The cubic root of 389354777 is about 730.2112211704.

The spelling of 389354777 in words is "three hundred eighty-nine million, three hundred fifty-four thousand, seven hundred seventy-seven".