461791787 has 4 divisors (see below), whose sum is σ = 463773960. Its totient is φ = 459809616.

The previous prime is 461791763. The next prime is 461791801. The reversal of 461791787 is 787197164.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-461791787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (461791387) 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, 990737 + ... + 991202.

It is an arithmetic number, because the mean of its divisors is an integer number (115943490).

Almost surely, 2^461791787 is an apocalyptic number.

461791787 is a deficient number, since it is larger than the sum of its proper divisors (1982173).

461791787 is a wasteful number, since it uses less digits than its factorization.

461791787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1982172.

The product of its digits is 592704, while the sum is 50.

The square root of 461791787 is about 21489.3412416481. The cubic root of 461791787 is about 772.9452540099.

The spelling of 461791787 in words is "four hundred sixty-one million, seven hundred ninety-one thousand, seven hundred eighty-seven".