998622494 has 16 divisors (see below), whose sum is σ = 1512905856. Its totient is φ = 494343000.

The previous prime is 998622481. The next prime is 998622503. The reversal of 998622494 is 494226899.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87329 + ... + 98099.

It is an arithmetic number, because the mean of its divisors is an integer number (94556616).

Almost surely, 2^998622494 is an apocalyptic number.

998622494 is a deficient number, since it is larger than the sum of its proper divisors (514283362).

998622494 is a wasteful number, since it uses less digits than its factorization.

998622494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11231.

The product of its digits is 2239488, while the sum is 53.

The square root of 998622494 is about 31600.9888136432. The cubic root of 998622494 is about 999.5406203360.

The spelling of 998622494 in words is "nine hundred ninety-eight million, six hundred twenty-two thousand, four hundred ninety-four".