461757643 has 4 divisors (see below), whose sum is σ = 462293568. Its totient is φ = 461221720.

The previous prime is 461757641. The next prime is 461757761. The reversal of 461757643 is 346757164.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 461757643 - 2¹ = 461757641 is a prime.

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 461757643.

It is not an unprimeable number, because it can be changed into a prime (461757641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 266668 + ... + 268393.

It is an arithmetic number, because the mean of its divisors is an integer number (115573392).

Almost surely, 2^461757643 is an apocalyptic number.

461757643 is a deficient number, since it is larger than the sum of its proper divisors (535925).

461757643 is an equidigital number, since it uses as much as digits as its factorization.

461757643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535924.

The product of its digits is 423360, while the sum is 43.

The square root of 461757643 is about 21488.5467866024. The cubic root of 461757643 is about 772.9262035100.

It can be divided in two parts, 461757 and 643, that added together give a square (462400 = 680²).

The spelling of 461757643 in words is "four hundred sixty-one million, seven hundred fifty-seven thousand, six hundred forty-three".