63349745 has 4 divisors (see below), whose sum is σ = 76019700. Its totient is φ = 50679792.

The previous prime is 63349739. The next prime is 63349747. The reversal of 63349745 is 54794336.

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 8456464 + 54893281 = 2908^2 + 7409^2 .

It is a cyclic number.

It is not a de Polignac number, because 63349745 - 2¹⁰ = 63348721 is a prime.

It is not an unprimeable number, because it can be changed into a prime (63349747) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6334970 + ... + 6334979.

It is an arithmetic number, because the mean of its divisors is an integer number (19004925).

Almost surely, 2^63349745 is an apocalyptic number.

It is an amenable number.

63349745 is a deficient number, since it is larger than the sum of its proper divisors (12669955).

63349745 is a wasteful number, since it uses less digits than its factorization.

63349745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12669954.

The product of its digits is 272160, while the sum is 41.

The square root of 63349745 is about 7959.2553043611. The cubic root of 63349745 is about 398.6406879931.

The spelling of 63349745 in words is "sixty-three million, three hundred forty-nine thousand, seven hundred forty-five".