461978673 has 32 divisors (see below), whose sum is σ = 710169600. Its totient is φ = 264741696.

The previous prime is 461978669. The next prime is 461978677. The reversal of 461978673 is 376879164.

It is an interprime number because it is at equal distance from previous prime (461978669) and next prime (461978677).

It is not a de Polignac number, because 461978673 - 2² = 461978669 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (461978677) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38436 + ... + 49002.

It is an arithmetic number, because the mean of its divisors is an integer number (22192800).

Almost surely, 2^461978673 is an apocalyptic number.

It is an amenable number.

461978673 is a deficient number, since it is larger than the sum of its proper divisors (248190927).

461978673 is a wasteful number, since it uses less digits than its factorization.

461978673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10661.

The product of its digits is 1524096, while the sum is 51.

The square root of 461978673 is about 21493.6891435603. The cubic root of 461978673 is about 773.0495096280.

The spelling of 461978673 in words is "four hundred sixty-one million, nine hundred seventy-eight thousand, six hundred seventy-three".