538616998 has 4 divisors (see below), whose sum is σ = 807925500. Its totient is φ = 269308498.

The previous prime is 538616977. The next prime is 538616999. The reversal of 538616998 is 899616835.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538616999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134654248 + ... + 134654251.

It is an arithmetic number, because the mean of its divisors is an integer number (201981375).

Almost surely, 2^538616998 is an apocalyptic number.

538616998 is a deficient number, since it is larger than the sum of its proper divisors (269308502).

538616998 is a wasteful number, since it uses less digits than its factorization.

538616998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269308501.

The product of its digits is 2799360, while the sum is 55.

The square root of 538616998 is about 23208.1235346592. The cubic root of 538616998 is about 813.6294971253.

The spelling of 538616998 in words is "five hundred thirty-eight million, six hundred sixteen thousand, nine hundred ninety-eight".