923486638 has 4 divisors (see below), whose sum is σ = 1385229960. Its totient is φ = 461743318.

The previous prime is 923486633. The next prime is 923486647. The reversal of 923486638 is 836684329.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 923486591 and 923486600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (923486633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 230871658 + ... + 230871661.

It is an arithmetic number, because the mean of its divisors is an integer number (346307490).

Almost surely, 2^923486638 is an apocalyptic number.

923486638 is a deficient number, since it is larger than the sum of its proper divisors (461743322).

923486638 is a wasteful number, since it uses less digits than its factorization.

923486638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461743321.

The product of its digits is 1492992, while the sum is 49.

The square root of 923486638 is about 30388.9229489957. The cubic root of 923486638 is about 973.8159241573.

The spelling of 923486638 in words is "nine hundred twenty-three million, four hundred eighty-six thousand, six hundred thirty-eight".