63704345 has 4 divisors (see below), whose sum is σ = 76445220. Its totient is φ = 50963472.

The previous prime is 63704339. The next prime is 63704351. The reversal of 63704345 is 54340736.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (63704339) and next prime (63704351).

It can be written as a sum of positive squares in 2 ways, for example, as 31225744 + 32478601 = 5588^2 + 5699^2 .

It is a cyclic number.

It is not a de Polignac number, because 63704345 - 2⁶ = 63704281 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6370430 + ... + 6370439.

It is an arithmetic number, because the mean of its divisors is an integer number (19111305).

Almost surely, 2^63704345 is an apocalyptic number.

It is an amenable number.

63704345 is a deficient number, since it is larger than the sum of its proper divisors (12740875).

63704345 is a wasteful number, since it uses less digits than its factorization.

63704345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12740874.

The product of its (nonzero) digits is 30240, while the sum is 32.

The square root of 63704345 is about 7981.5001722734. The cubic root of 63704345 is about 399.3831011620.

The spelling of 63704345 in words is "sixty-three million, seven hundred four thousand, three hundred forty-five".