998667036 has 24 divisors (see below), whose sum is σ = 2589137040. Its totient is φ = 332888976.

The previous prime is 998667031. The next prime is 998667049. The reversal of 998667036 is 630766899.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (998667031) 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, 4623351 + ... + 4623566.

It is an arithmetic number, because the mean of its divisors is an integer number (107880710).

Almost surely, 2^998667036 is an apocalyptic number.

It is an amenable number.

998667036 is an abundant number, since it is smaller than the sum of its proper divisors (1590470004).

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

998667036 is a wasteful number, since it uses less digits than its factorization.

998667036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9246930 (or 9246922 counting only the distinct ones).

The product of its (nonzero) digits is 2939328, while the sum is 54.

The square root of 998667036 is about 31601.6935622128. The cubic root of 998667036 is about 999.5554810989. Note that the first 3 decimals are identical.

The spelling of 998667036 in words is "nine hundred ninety-eight million, six hundred sixty-seven thousand, thirty-six".