63946371 has 16 divisors (see below), whose sum is σ = 89300736. Its totient is φ = 40625376.

The previous prime is 63946369. The next prime is 63946373. The reversal of 63946371 is 17364936.

It is an interprime number because it is at equal distance from previous prime (63946369) and next prime (63946373).

It is not a de Polignac number, because 63946371 - 2¹ = 63946369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (63946373) 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 15 ways as a sum of consecutive naturals, for example, 18636 + ... + 21798.

It is an arithmetic number, because the mean of its divisors is an integer number (5581296).

Almost surely, 2^63946371 is an apocalyptic number.

63946371 is a deficient number, since it is larger than the sum of its proper divisors (25354365).

63946371 is a wasteful number, since it uses less digits than its factorization.

63946371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3482.

The product of its digits is 81648, while the sum is 39.

The square root of 63946371 is about 7996.6474850402. The cubic root of 63946371 is about 399.8882416948. Note that the first 3 decimals are identical.

The spelling of 63946371 in words is "sixty-three million, nine hundred forty-six thousand, three hundred seventy-one".