487621897 has 24 divisors (see below), whose sum is σ = 606533760. Its totient is φ = 383715840.

The previous prime is 487621867. The next prime is 487621903. The reversal of 487621897 is 798126784.

It is not a de Polignac number, because 487621897 - 2⁷ = 487621769 is a prime.

It is a super-2 number, since 2×487621897² = 475550228867757218, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (487621817) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 80004 + ... + 85882.

It is an arithmetic number, because the mean of its divisors is an integer number (25272240).

Almost surely, 2^487621897 is an apocalyptic number.

It is an amenable number.

487621897 is a deficient number, since it is larger than the sum of its proper divisors (118911863).

487621897 is a wasteful number, since it uses less digits than its factorization.

487621897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5961 (or 5944 counting only the distinct ones).

The product of its digits is 1354752, while the sum is 52.

The square root of 487621897 is about 22082.1624167562. The cubic root of 487621897 is about 787.0960505596.

The spelling of 487621897 in words is "four hundred eighty-seven million, six hundred twenty-one thousand, eight hundred ninety-seven".