481779657 has 20 divisors (see below), whose sum is σ = 735014016. Its totient is φ = 314350200.

The previous prime is 481779619. The next prime is 481779679. The reversal of 481779657 is 756977184.

481779657 is a `hidden beast` number, since 481 + 77 + 96 + 5 + 7 = 666.

It is not a de Polignac number, because 481779657 - 2²⁰ = 480731081 is a prime.

It is a super-2 number, since 2×481779657² = 464223275798075298, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (481779757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 59469 + ... + 67082.

Almost surely, 2^481779657 is an apocalyptic number.

481779657 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

It is an amenable number.

481779657 is a deficient number, since it is larger than the sum of its proper divisors (253234359).

481779657 is a wasteful number, since it uses less digits than its factorization.

481779657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126610 (or 126601 counting only the distinct ones).

The product of its digits is 2963520, while the sum is 54.

The square root of 481779657 is about 21949.4796521467. The cubic root of 481779657 is about 783.9399905694.

The spelling of 481779657 in words is "four hundred eighty-one million, seven hundred seventy-nine thousand, six hundred fifty-seven".