463994457 has 4 divisors (see below), whose sum is σ = 618659280. Its totient is φ = 309329636.

The previous prime is 463994449. The next prime is 463994473. The reversal of 463994457 is 754499364.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 463994457 - 2³ = 463994449 is a prime.

It is a super-2 number, since 2×463994457² = 430581712253449698, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (463992457) 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, 77332407 + ... + 77332412.

It is an arithmetic number, because the mean of its divisors is an integer number (154664820).

Almost surely, 2^463994457 is an apocalyptic number.

It is an amenable number.

463994457 is a deficient number, since it is larger than the sum of its proper divisors (154664823).

463994457 is a wasteful number, since it uses less digits than its factorization.

463994457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154664822.

The product of its digits is 3265920, while the sum is 51.

The square root of 463994457 is about 21540.5305644963. The cubic root of 463994457 is about 774.1722453160.

The spelling of 463994457 in words is "four hundred sixty-three million, nine hundred ninety-four thousand, four hundred fifty-seven".