646035463 has 2 divisors, whose sum is σ = 646035464. Its totient is φ = 646035462.

The previous prime is 646035451. The next prime is 646035487. The reversal of 646035463 is 364530646.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 646035463 - 2²¹ = 643938311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (646035413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 323017731 + 323017732.

It is an arithmetic number, because the mean of its divisors is an integer number (323017732).

Almost surely, 2^646035463 is an apocalyptic number.

646035463 is a deficient number, since it is larger than the sum of its proper divisors (1).

646035463 is an equidigital number, since it uses as much as digits as its factorization.

646035463 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 155520, while the sum is 37.

The square root of 646035463 is about 25417.2276812401. The cubic root of 646035463 is about 864.4743654062.

The spelling of 646035463 in words is "six hundred forty-six million, thirty-five thousand, four hundred sixty-three".