998885746 has 16 divisors (see below), whose sum is σ = 1577964960. Its totient is φ = 472923360.

The previous prime is 998885737. The next prime is 998885749. The reversal of 998885746 is 647588899.

998885746 = T₂₅₈₀₄ + T₂₅₈₀₅ + T₂₅₈₀₆.

It is not an unprimeable number, because it can be changed into a prime (998885749) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90585 + ... + 101011.

It is an arithmetic number, because the mean of its divisors is an integer number (98622810).

Almost surely, 2^998885746 is an apocalyptic number.

998885746 is the 25806-th centered triangular number.

998885746 is a deficient number, since it is larger than the sum of its proper divisors (579079214).

998885746 is a wasteful number, since it uses less digits than its factorization.

998885746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12969.

The product of its digits is 34836480, while the sum is 64.

The square root of 998885746 is about 31605.1537885833. The cubic root of 998885746 is about 999.6284439632.

The spelling of 998885746 in words is "nine hundred ninety-eight million, eight hundred eighty-five thousand, seven hundred forty-six".