463873621 has 4 divisors (see below), whose sum is σ = 465899500. Its totient is φ = 461847744.

The previous prime is 463873603. The next prime is 463873693. The reversal of 463873621 is 126378364.

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 339996721 + 123876900 = 18439^2 + 11130^2 .

It is a cyclic number.

It is not a de Polignac number, because 463873621 - 2¹³ = 463865429 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 (463873021) 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, 1012596 + ... + 1013053.

It is an arithmetic number, because the mean of its divisors is an integer number (116474875).

Almost surely, 2^463873621 is an apocalyptic number.

It is an amenable number.

463873621 is a deficient number, since it is larger than the sum of its proper divisors (2025879).

463873621 is a wasteful number, since it uses less digits than its factorization.

463873621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2025878.

The product of its digits is 145152, while the sum is 40.

The square root of 463873621 is about 21537.7255298697. The cubic root of 463873621 is about 774.1050347434.

The spelling of 463873621 in words is "four hundred sixty-three million, eight hundred seventy-three thousand, six hundred twenty-one".