63673347 has 18 divisors (see below), whose sum is σ = 90519564. Its totient is φ = 39804480.

The previous prime is 63673339. The next prime is 63673397. The reversal of 63673347 is 74337636.

It is not a de Polignac number, because 63673347 - 2³ = 63673339 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (63673307) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 234822 + ... + 235092.

Almost surely, 2^63673347 is an apocalyptic number.

63673347 is a deficient number, since it is larger than the sum of its proper divisors (26846217).

63673347 is an equidigital number, since it uses as much as digits as its factorization.

63673347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579 (or 291 counting only the distinct ones).

The product of its digits is 190512, while the sum is 39.

The square root of 63673347 is about 7979.5580704698. The cubic root of 63673347 is about 399.3183118297.

Multiplying 63673347 by its product of digits (190512), we get a square (12130536683664 = 3482892²).

The spelling of 63673347 in words is "sixty-three million, six hundred seventy-three thousand, three hundred forty-seven".