63346649 has 4 divisors (see below), whose sum is σ = 63364020. Its totient is φ = 63329280.

The previous prime is 63346639. The next prime is 63346651. The reversal of 63346649 is 94664336.

It is a happy number.

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 43033600 + 20313049 = 6560^2 + 4507^2 .

It is a cyclic number.

It is not a de Polignac number, because 63346649 - 2¹² = 63342553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63346639) 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, 872 + ... + 11289.

It is an arithmetic number, because the mean of its divisors is an integer number (15841005).

Almost surely, 2^63346649 is an apocalyptic number.

It is an amenable number.

63346649 is a deficient number, since it is larger than the sum of its proper divisors (17371).

63346649 is a wasteful number, since it uses less digits than its factorization.

63346649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17370.

The product of its digits is 279936, while the sum is 41.

The square root of 63346649 is about 7959.0608114274. The cubic root of 63346649 is about 398.6341938250.

The spelling of 63346649 in words is "sixty-three million, three hundred forty-six thousand, six hundred forty-nine".