998822534 has 8 divisors (see below), whose sum is σ = 1500404088. Its totient is φ = 498687840.

The previous prime is 998822519. The next prime is 998822537. The reversal of 998822534 is 435228899.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (998822537) 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, 359987 + ... + 362750.

It is an arithmetic number, because the mean of its divisors is an integer number (187550511).

Almost surely, 2^998822534 is an apocalyptic number.

998822534 is a deficient number, since it is larger than the sum of its proper divisors (501581554).

998822534 is a wasteful number, since it uses less digits than its factorization.

998822534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 723430.

The product of its digits is 1244160, while the sum is 50.

The square root of 998822534 is about 31604.1537459873. The cubic root of 998822534 is about 999.6073571851.

The spelling of 998822534 in words is "nine hundred ninety-eight million, eight hundred twenty-two thousand, five hundred thirty-four".