997000481 has 8 divisors (see below), whose sum is σ = 1042327680. Its totient is φ = 953640996.

The previous prime is 997000457. The next prime is 997000507. The reversal of 997000481 is 184000799.

It is not a de Polignac number, because 997000481 - 2²⁶ = 929891617 is a prime.

It is a super-2 number, since 2×997000481² = 1988019918228462722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (997000681) 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, 28805 + ... + 53138.

It is an arithmetic number, because the mean of its divisors is an integer number (130290960).

Almost surely, 2^997000481 is an apocalyptic number.

It is an amenable number.

997000481 is a deficient number, since it is larger than the sum of its proper divisors (45327199).

997000481 is an frugal number, since it uses more digits than its factorization.

997000481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82012 (or 81966 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 997000481 is about 31575.3144244044. The cubic root of 997000481 is about 998.9991589848. Note that the first 3 decimals are identical.

The spelling of 997000481 in words is "nine hundred ninety-seven million, four hundred eighty-one", and thus it is an aban number.