468868621 has 4 divisors (see below), whose sum is σ = 504935452. Its totient is φ = 432801792.

The previous prime is 468868591. The next prime is 468868627. The reversal of 468868621 is 126868864.

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

It can be written as a sum of positive squares in 2 ways, for example, as 247275625 + 221592996 = 15725^2 + 14886^2 .

It is a cyclic number.

It is not a de Polignac number, because 468868621 - 2⁷ = 468868493 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 (468868627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18033396 + ... + 18033421.

It is an arithmetic number, because the mean of its divisors is an integer number (126233863).

Almost surely, 2^468868621 is an apocalyptic number.

It is an amenable number.

468868621 is a deficient number, since it is larger than the sum of its proper divisors (36066831).

468868621 is a wasteful number, since it uses less digits than its factorization.

468868621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36066830.

The product of its digits is 884736, while the sum is 49.

The square root of 468868621 is about 21653.3743559751. The cubic root of 468868621 is about 776.8736468334.

The spelling of 468868621 in words is "four hundred sixty-eight million, eight hundred sixty-eight thousand, six hundred twenty-one".