63416945 has 4 divisors (see below), whose sum is σ = 76100340. Its totient is φ = 50733552.

The previous prime is 63416929. The next prime is 63416971. The reversal of 63416945 is 54961436.

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

It can be written as a sum of positive squares in 2 ways, for example, as 48455521 + 14961424 = 6961^2 + 3868^2 .

It is a cyclic number.

It is not a de Polignac number, because 63416945 - 2⁴ = 63416929 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 63416899 and 63416908.

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, 6341690 + ... + 6341699.

It is an arithmetic number, because the mean of its divisors is an integer number (19025085).

Almost surely, 2^63416945 is an apocalyptic number.

It is an amenable number.

63416945 is a deficient number, since it is larger than the sum of its proper divisors (12683395).

63416945 is a wasteful number, since it uses less digits than its factorization.

63416945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12683394.

The product of its digits is 77760, while the sum is 38.

The square root of 63416945 is about 7963.4756859050. The cubic root of 63416945 is about 398.7815945721.

The spelling of 63416945 in words is "sixty-three million, four hundred sixteen thousand, nine hundred forty-five".