63354661 has 4 divisors (see below), whose sum is σ = 64393324. Its totient is φ = 62316000.

The previous prime is 63354653. The next prime is 63354679. The reversal of 63354661 is 16645336.

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 8964036 + 54390625 = 2994^2 + 7375^2 .

It is a cyclic number.

It is not a de Polignac number, because 63354661 - 2³ = 63354653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63354601) 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, 519240 + ... + 519361.

It is an arithmetic number, because the mean of its divisors is an integer number (16098331).

Almost surely, 2^63354661 is an apocalyptic number.

63354661 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

It is an amenable number.

63354661 is a deficient number, since it is larger than the sum of its proper divisors (1038663).

63354661 is a wasteful number, since it uses less digits than its factorization.

63354661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1038662.

The product of its digits is 38880, while the sum is 34.

The square root of 63354661 is about 7959.5641212318. The cubic root of 63354661 is about 398.6509993576.

Adding to 63354661 its reverse (16645336), we get a palindrome (79999997).

The spelling of 63354661 in words is "sixty-three million, three hundred fifty-four thousand, six hundred sixty-one".