993557098 has 4 divisors (see below), whose sum is σ = 1490335650. Its totient is φ = 496778548.

The previous prime is 993557077. The next prime is 993557153. The reversal of 993557098 is 890755399.

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

It can be written as a sum of positive squares in only one way, i.e., 638724529 + 354832569 = 25273^2 + 18837^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 248389273 + ... + 248389276.

Almost surely, 2^993557098 is an apocalyptic number.

993557098 is a deficient number, since it is larger than the sum of its proper divisors (496778552).

993557098 is a wasteful number, since it uses less digits than its factorization.

993557098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496778551.

The product of its (nonzero) digits is 3061800, while the sum is 55.

The square root of 993557098 is about 31520.7407590621. The cubic root of 993557098 is about 997.8477370876.

The spelling of 993557098 in words is "nine hundred ninety-three million, five hundred fifty-seven thousand, ninety-eight".