63967545 has 12 divisors (see below), whose sum is σ = 110877156. Its totient is φ = 34116000.

The previous prime is 63967537. The next prime is 63967567. The reversal of 63967545 is 54576936.

63967545 is a `hidden beast` number, since 639 + 6 + 7 + 5 + 4 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 20684304 + 43283241 = 4548^2 + 6579^2 .

It is not a de Polignac number, because 63967545 - 2³ = 63967537 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 1421501 = 63967545 / (6 + 3 + 9 + 6 + 7 + 5 + 4 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 63967545.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 710706 + ... + 710795.

It is an arithmetic number, because the mean of its divisors is an integer number (9239763).

Almost surely, 2^63967545 is an apocalyptic number.

It is an amenable number.

63967545 is a deficient number, since it is larger than the sum of its proper divisors (46909611).

63967545 is a wasteful number, since it uses less digits than its factorization.

63967545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1421512 (or 1421509 counting only the distinct ones).

The product of its digits is 680400, while the sum is 45.

The square root of 63967545 is about 7997.9713052749. The cubic root of 63967545 is about 399.9323739841.

The spelling of 63967545 in words is "sixty-three million, nine hundred sixty-seven thousand, five hundred forty-five".