998654452929 has 81 divisors (see below), whose sum is σ = 1754988507363. Its totient is φ = 545584574304.

The previous prime is 998654452867. The next prime is 998654452933. The reversal of 998654452929 is 929254456899.

The square root of 998654452929 is 999327.

It is a perfect power (a square), and thus also a powerful number.

998654452929 is a `hidden beast` number, since 9 + 9 + 8 + 6 + 544 + 52 + 9 + 29 = 666.

It can be written as a sum of positive squares in only one way, i.e., 156481162929 + 842173290000 = 395577^2 + 917700^2 .

It is not a de Polignac number, because 998654452929 - 2⁹ = 998654452417 is a prime.

It is not an unprimeable number, because it can be changed into a prime (998654452949) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 482673907 + ... + 482675975.

Almost surely, 2^998654452929 is an apocalyptic number.

998654452929 is the 999327-th square number.

998654452929 is the 499664-th centered octagonal number.

It is an amenable number.

998654452929 is a deficient number, since it is larger than the sum of its proper divisors (756334054434).

998654452929 is an equidigital number, since it uses as much as digits as its factorization.

998654452929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4204 (or 2102 counting only the distinct ones).

The product of its digits is 503884800, while the sum is 72.

The spelling of 998654452929 in words is "nine hundred ninety-eight billion, six hundred fifty-four million, four hundred fifty-two thousand, nine hundred twenty-nine".