63900461 has 2 divisors, whose sum is σ = 63900462. Its totient is φ = 63900460.

The previous prime is 63900437. The next prime is 63900469. The reversal of 63900461 is 16400936.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47748100 + 16152361 = 6910^2 + 4019^2 .

It is a cyclic number.

It is not a de Polignac number, because 63900461 - 2¹⁸ = 63638317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63900469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31950230 + 31950231.

It is an arithmetic number, because the mean of its divisors is an integer number (31950231).

Almost surely, 2^63900461 is an apocalyptic number.

It is an amenable number.

63900461 is a deficient number, since it is larger than the sum of its proper divisors (1).

63900461 is an equidigital number, since it uses as much as digits as its factorization.

63900461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 63900461 is about 7993.7763916687. The cubic root of 63900461 is about 399.7925194815.

The spelling of 63900461 in words is "sixty-three million, nine hundred thousand, four hundred sixty-one".