461847481 has 4 divisors (see below), whose sum is σ = 463086052. Its totient is φ = 460608912.

The previous prime is 461847461. The next prime is 461847487. The reversal of 461847481 is 184748164.

It is a happy number.

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 213627456 + 248220025 = 14616^2 + 15755^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-461847481 is a prime.

It is a super-2 number, since 2×461847481² = 426606191412090722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (461847487) 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, 618726 + ... + 619471.

It is an arithmetic number, because the mean of its divisors is an integer number (115771513).

Almost surely, 2^461847481 is an apocalyptic number.

It is an amenable number.

461847481 is a deficient number, since it is larger than the sum of its proper divisors (1238571).

461847481 is a wasteful number, since it uses less digits than its factorization.

461847481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1238570.

The product of its digits is 172032, while the sum is 43.

The square root of 461847481 is about 21490.6370543081. The cubic root of 461847481 is about 772.9763262259.

The spelling of 461847481 in words is "four hundred sixty-one million, eight hundred forty-seven thousand, four hundred eighty-one".