931994481 has 8 divisors (see below), whose sum is σ = 1355628384. Its totient is φ = 564845120.

The previous prime is 931994471. The next prime is 931994501. The reversal of 931994481 is 184499139.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 931994481 - 2¹⁰ = 931993457 is a prime.

It is a super-2 number, since 2×931994481² = 1737227425228918722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 931994481.

It is not an unprimeable number, because it can be changed into a prime (931994471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14121096 + ... + 14121161.

It is an arithmetic number, because the mean of its divisors is an integer number (169453548).

Almost surely, 2^931994481 is an apocalyptic number.

It is an amenable number.

931994481 is a deficient number, since it is larger than the sum of its proper divisors (423633903).

931994481 is a wasteful number, since it uses less digits than its factorization.

931994481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28242271.

The product of its digits is 279936, while the sum is 48.

The square root of 931994481 is about 30528.5846543858. The cubic root of 931994481 is about 976.7972918482.

The spelling of 931994481 in words is "nine hundred thirty-one million, nine hundred ninety-four thousand, four hundred eighty-one".