467681681 has 4 divisors (see below), whose sum is σ = 468440292. Its totient is φ = 466923072.

The previous prime is 467681603. The next prime is 467681689. The reversal of 467681681 is 186186764.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5216656 + 462465025 = 2284^2 + 21505^2 .

It is a cyclic number.

It is not a de Polignac number, because 467681681 - 2²⁶ = 400572817 is a prime.

It is a super-2 number, since 2×467681681² = 437452309485971522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (467681689) 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, 378380 + ... + 379613.

It is an arithmetic number, because the mean of its divisors is an integer number (117110073).

Almost surely, 2^467681681 is an apocalyptic number.

It is an amenable number.

467681681 is a deficient number, since it is larger than the sum of its proper divisors (758611).

467681681 is an equidigital number, since it uses as much as digits as its factorization.

467681681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 758610.

The product of its digits is 387072, while the sum is 47.

The square root of 467681681 is about 21625.9492508421. The cubic root of 467681681 is about 776.2175415043.

The spelling of 467681681 in words is "four hundred sixty-seven million, six hundred eighty-one thousand, six hundred eighty-one".