430061861 has 2 divisors, whose sum is σ = 430061862. Its totient is φ = 430061860.

The previous prime is 430061857. The next prime is 430061873. The reversal of 430061861 is 168160034.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 375390625 + 54671236 = 19375^2 + 7394^2 .

It is a cyclic number.

It is not a de Polignac number, because 430061861 - 2² = 430061857 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (430061161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215030930 + 215030931.

It is an arithmetic number, because the mean of its divisors is an integer number (215030931).

Almost surely, 2^430061861 is an apocalyptic number.

It is an amenable number.

430061861 is a deficient number, since it is larger than the sum of its proper divisors (1).

430061861 is an equidigital number, since it uses as much as digits as its factorization.

430061861 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 430061861 is about 20737.9329008462. The cubic root of 430061861 is about 754.8204248152.

The spelling of 430061861 in words is "four hundred thirty million, sixty-one thousand, eight hundred sixty-one".