998072 has 8 divisors (see below), whose sum is σ = 1871400. Its totient is φ = 499032.

The previous prime is 998071. The next prime is 998077. The reversal of 998072 is 270899.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×998072² = 1992295434368, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (998071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62372 + ... + 62387.

It is an arithmetic number, because the mean of its divisors is an integer number (233925).

2⁹⁹⁸⁰⁷² is an apocalyptic number.

It is an amenable number.

998072 is a deficient number, since it is larger than the sum of its proper divisors (873328).

998072 is a wasteful number, since it uses less digits than its factorization.

998072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124765 (or 124761 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 998072 is about 999.0355349035. The cubic root of 998072 is about 99.9356919870.

The spelling of 998072 in words is "nine hundred ninety-eight thousand, seventy-two".