461661599 has 8 divisors (see below), whose sum is σ = 540482208. Its totient is φ = 386058240.

The previous prime is 461661593. The next prime is 461661623. The reversal of 461661599 is 995166164.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 461661599 - 2⁴ = 461661583 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (461661593) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 804002 + ... + 804575.

It is an arithmetic number, because the mean of its divisors is an integer number (67560276).

Almost surely, 2^461661599 is an apocalyptic number.

461661599 is a deficient number, since it is larger than the sum of its proper divisors (78820609).

461661599 is a wasteful number, since it uses less digits than its factorization.

461661599 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1608625.

The product of its digits is 349920, while the sum is 47.

The square root of 461661599 is about 21486.3118985088. The cubic root of 461661599 is about 772.8726111310.

The spelling of 461661599 in words is "four hundred sixty-one million, six hundred sixty-one thousand, five hundred ninety-nine".