463865421 has 4 divisors (see below), whose sum is σ = 618487232. Its totient is φ = 309243612.

The previous prime is 463865407. The next prime is 463865429. The reversal of 463865421 is 124568364.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 463865421 - 2⁹ = 463864909 is a prime.

It is a super-2 number, since 2×463865421² = 430342257599014482, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 463865421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (463865429) 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, 77310901 + ... + 77310906.

It is an arithmetic number, because the mean of its divisors is an integer number (154621808).

Almost surely, 2^463865421 is an apocalyptic number.

It is an amenable number.

463865421 is a deficient number, since it is larger than the sum of its proper divisors (154621811).

463865421 is a wasteful number, since it uses less digits than its factorization.

463865421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154621810.

The product of its digits is 138240, while the sum is 39.

The square root of 463865421 is about 21537.5351653805. The cubic root of 463865421 is about 774.1004733727.

The spelling of 463865421 in words is "four hundred sixty-three million, eight hundred sixty-five thousand, four hundred twenty-one".