461942609 has 4 divisors (see below), whose sum is σ = 461985600. Its totient is φ = 461899620.

The previous prime is 461942597. The next prime is 461942617. The reversal of 461942609 is 906249164.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 461942609 - 2²⁴ = 445165393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (461942639) 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, 10292 + ... + 32090.

It is an arithmetic number, because the mean of its divisors is an integer number (115496400).

Almost surely, 2^461942609 is an apocalyptic number.

It is an amenable number.

461942609 is a deficient number, since it is larger than the sum of its proper divisors (42991).

461942609 is a wasteful number, since it uses less digits than its factorization.

461942609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42990.

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 461942609 is about 21492.8501832586. The cubic root of 461942609 is about 773.0293932715.

The spelling of 461942609 in words is "four hundred sixty-one million, nine hundred forty-two thousand, six hundred nine".