481997816 has 32 divisors (see below), whose sum is σ = 930440640. Its totient is φ = 233912448.

The previous prime is 481997809. The next prime is 481997819. The reversal of 481997816 is 618799184.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (481997819) 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, 135290 + ... + 138806.

It is an arithmetic number, because the mean of its divisors is an integer number (29076270).

Almost surely, 2^481997816 is an apocalyptic number.

It is an amenable number.

481997816 is a deficient number, since it is larger than the sum of its proper divisors (448442824).

481997816 is a wasteful number, since it uses less digits than its factorization.

481997816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4023 (or 4019 counting only the distinct ones).

The product of its digits is 870912, while the sum is 53.

The square root of 481997816 is about 21954.4486608068. The cubic root of 481997816 is about 784.0583003640.

The spelling of 481997816 in words is "four hundred eighty-one million, nine hundred ninety-seven thousand, eight hundred sixteen".