461191807 has 4 divisors (see below), whose sum is σ = 485465080. Its totient is φ = 436918536.

The previous prime is 461191771. The next prime is 461191811. The reversal of 461191807 is 708191164.

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

It is a cyclic number.

It is not a de Polignac number, because 461191807 - 2²⁷ = 326974079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (461191817) 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, 12136608 + ... + 12136645.

It is an arithmetic number, because the mean of its divisors is an integer number (121366270).

Almost surely, 2^461191807 is an apocalyptic number.

461191807 is a deficient number, since it is larger than the sum of its proper divisors (24273273).

461191807 is a wasteful number, since it uses less digits than its factorization.

461191807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24273272.

The product of its (nonzero) digits is 12096, while the sum is 37.

The square root of 461191807 is about 21475.3767603737. The cubic root of 461191807 is about 772.6103608872.

The spelling of 461191807 in words is "four hundred sixty-one million, one hundred ninety-one thousand, eight hundred seven".