461240891 has 2 divisors, whose sum is σ = 461240892. Its totient is φ = 461240890.

The previous prime is 461240881. The next prime is 461240929. The reversal of 461240891 is 198042164.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-461240891 is a prime.

It is a super-3 number, since 3×461240891³ (a number of 27 digits) contains 333 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (461240831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 230620445 + 230620446.

It is an arithmetic number, because the mean of its divisors is an integer number (230620446).

Almost surely, 2^461240891 is an apocalyptic number.

461240891 is a deficient number, since it is larger than the sum of its proper divisors (1).

461240891 is an equidigital number, since it uses as much as digits as its factorization.

461240891 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 461240891 is about 21476.5195271487. The cubic root of 461240891 is about 772.6377691955.

The spelling of 461240891 in words is "four hundred sixty-one million, two hundred forty thousand, eight hundred ninety-one".