618463387 has 4 divisors (see below), whose sum is σ = 618513480. Its totient is φ = 618413296.

The previous prime is 618463381. The next prime is 618463427. The reversal of 618463387 is 783364816.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 618463387 - 2³ = 618463379 is a prime.

It is a super-2 number, since 2×618463387² = 764993922119023538, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (618463381) 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 3 ways as a sum of consecutive naturals, for example, 8064 + ... + 36082.

It is an arithmetic number, because the mean of its divisors is an integer number (154628370).

Almost surely, 2^618463387 is an apocalyptic number.

618463387 is a deficient number, since it is larger than the sum of its proper divisors (50093).

618463387 is a wasteful number, since it uses less digits than its factorization.

618463387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50092.

The product of its digits is 580608, while the sum is 46.

The square root of 618463387 is about 24868.9241222856. The cubic root of 618463387 is about 851.9968678020.

The spelling of 618463387 in words is "six hundred eighteen million, four hundred sixty-three thousand, three hundred eighty-seven".