981133396 has 12 divisors (see below), whose sum is σ = 1721664448. Its totient is φ = 489229272.

The previous prime is 981133339. The next prime is 981133399. The reversal of 981133396 is 693331189.

It is a happy number.

It is a super-3 number, since 3×981133396³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (981133399) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 332706 + ... + 335641.

Almost surely, 2^981133396 is an apocalyptic number.

It is an amenable number.

981133396 is a deficient number, since it is larger than the sum of its proper divisors (740531052).

981133396 is a wasteful number, since it uses less digits than its factorization.

981133396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 668718 (or 668716 counting only the distinct ones).

The product of its digits is 104976, while the sum is 43.

The square root of 981133396 is about 31323.0489575967. The cubic root of 981133396 is about 993.6711623123.

The spelling of 981133396 in words is "nine hundred eighty-one million, one hundred thirty-three thousand, three hundred ninety-six".