461777623 has 2 divisors, whose sum is σ = 461777624. Its totient is φ = 461777622.

The previous prime is 461777611. The next prime is 461777651. The reversal of 461777623 is 326777164.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 461777623 - 2⁹ = 461777111 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 461777623.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (461778623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 230888811 + 230888812.

It is an arithmetic number, because the mean of its divisors is an integer number (230888812).

Almost surely, 2^461777623 is an apocalyptic number.

461777623 is a deficient number, since it is larger than the sum of its proper divisors (1).

461777623 is an equidigital number, since it uses as much as digits as its factorization.

461777623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 296352, while the sum is 43.

The square root of 461777623 is about 21489.0116803914. The cubic root of 461777623 is about 772.9373513802.

It can be divided in two parts, 461777 and 623, that added together give a square (462400 = 680²).

The spelling of 461777623 in words is "four hundred sixty-one million, seven hundred seventy-seven thousand, six hundred twenty-three".