981199004 has 24 divisors (see below), whose sum is σ = 1766305968. Its totient is φ = 476582400.

The previous prime is 981198997. The next prime is 981199027. The reversal of 981199004 is 400991189.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94679 + ... + 104529.

It is an arithmetic number, because the mean of its divisors is an integer number (73596082).

Almost surely, 2^981199004 is an apocalyptic number.

It is an amenable number.

981199004 is a deficient number, since it is larger than the sum of its proper divisors (785106964).

981199004 is a wasteful number, since it uses less digits than its factorization.

981199004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10565 (or 10563 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 41.

The square root of 981199004 is about 31324.0962200029. The cubic root of 981199004 is about 993.6933106171.

The spelling of 981199004 in words is "nine hundred eighty-one million, one hundred ninety-nine thousand, four".