461044391 has 2 divisors, whose sum is σ = 461044392. Its totient is φ = 461044390.

The previous prime is 461044387. The next prime is 461044439. The reversal of 461044391 is 193440164.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 461044391 - 2² = 461044387 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (461044321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 230522195 + 230522196.

It is an arithmetic number, because the mean of its divisors is an integer number (230522196).

Almost surely, 2^461044391 is an apocalyptic number.

461044391 is a deficient number, since it is larger than the sum of its proper divisors (1).

461044391 is an equidigital number, since it uses as much as digits as its factorization.

461044391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 461044391 is about 21471.9442761945. The cubic root of 461044391 is about 772.5280326928.

The spelling of 461044391 in words is "four hundred sixty-one million, forty-four thousand, three hundred ninety-one".