998554704 has 160 divisors (see below), whose sum is σ = 3175511040. Its totient is φ = 263878656.

The previous prime is 998554703. The next prime is 998554727. The reversal of 998554704 is 407455899.

It is a super-2 number, since 2×998554704² = 1994222993761055232, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (998554703) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 335527 + ... + 338489.

It is an arithmetic number, because the mean of its divisors is an integer number (19846944).

Almost surely, 2^998554704 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 998554704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1587755520).

998554704 is an abundant number, since it is smaller than the sum of its proper divisors (2176956336).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

998554704 is a wasteful number, since it uses less digits than its factorization.

998554704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3057 (or 3051 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 51.

The square root of 998554704 is about 31599.9162024205. The cubic root of 998554704 is about 999.5180023823.

The spelling of 998554704 in words is "nine hundred ninety-eight million, five hundred fifty-four thousand, seven hundred four".