998352729 has 48 divisors (see below), whose sum is σ = 1650349120. Its totient is φ = 595900800.

The previous prime is 998352673. The next prime is 998352731. The reversal of 998352729 is 927253899.

998352729 is a `hidden beast` number, since 9 + 98 + 3 + 527 + 29 = 666.

It is not a de Polignac number, because 998352729 - 2¹² = 998348633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (998352749) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 216609 + ... + 221169.

Almost surely, 2^998352729 is an apocalyptic number.

998352729 is a gapful number since it is divisible by the number (99) formed by its first and last digit.

It is an amenable number.

998352729 is a deficient number, since it is larger than the sum of its proper divisors (651996391).

998352729 is a wasteful number, since it uses less digits than its factorization.

998352729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4659 (or 4642 counting only the distinct ones).

The product of its digits is 2449440, while the sum is 54.

The square root of 998352729 is about 31596.7202253652. The cubic root of 998352729 is about 999.4506078903.

The spelling of 998352729 in words is "nine hundred ninety-eight million, three hundred fifty-two thousand, seven hundred twenty-nine".