461777091 has 8 divisors (see below), whose sum is σ = 615945984. Its totient is φ = 307729800.

The previous prime is 461777089. The next prime is 461777093. The reversal of 461777091 is 190777164.

It is an interprime number because it is at equal distance from previous prime (461777089) and next prime (461777093).

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

It is not a de Polignac number, because 461777091 - 2¹ = 461777089 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (461777093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21135 + ... + 37016.

It is an arithmetic number, because the mean of its divisors is an integer number (76993248).

Almost surely, 2^461777091 is an apocalyptic number.

461777091 is a deficient number, since it is larger than the sum of its proper divisors (154168893).

461777091 is a wasteful number, since it uses less digits than its factorization.

461777091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60801.

The product of its (nonzero) digits is 74088, while the sum is 42.

The square root of 461777091 is about 21488.9993019684. Note that the first 3 decimals coincide. The cubic root of 461777091 is about 772.9370545542.

The spelling of 461777091 in words is "four hundred sixty-one million, seven hundred seventy-seven thousand, ninety-one".