481587997 has 4 divisors (see below), whose sum is σ = 525368736. Its totient is φ = 437807260.

The previous prime is 481587983. The next prime is 481588001. The reversal of 481587997 is 799785184.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-481587997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (481587907) 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, 21890353 + ... + 21890374.

It is an arithmetic number, because the mean of its divisors is an integer number (131342184).

Almost surely, 2^481587997 is an apocalyptic number.

It is an amenable number.

481587997 is a deficient number, since it is larger than the sum of its proper divisors (43780739).

481587997 is a wasteful number, since it uses less digits than its factorization.

481587997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43780738.

The product of its digits is 5080320, while the sum is 58.

The square root of 481587997 is about 21945.1132829156. The cubic root of 481587997 is about 783.8360219711.

The spelling of 481587997 in words is "four hundred eighty-one million, five hundred eighty-seven thousand, nine hundred ninety-seven".