63209849 has 4 divisors (see below), whose sum is σ = 63275136. Its totient is φ = 63144564.

The previous prime is 63209843. The next prime is 63209869. The reversal of 63209849 is 94890236.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 63209849 - 2¹⁶ = 63144313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63209843) 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, 31169 + ... + 33134.

It is an arithmetic number, because the mean of its divisors is an integer number (15818784).

Almost surely, 2^63209849 is an apocalyptic number.

It is an amenable number.

63209849 is a deficient number, since it is larger than the sum of its proper divisors (65287).

63209849 is an equidigital number, since it uses as much as digits as its factorization.

63209849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65286.

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 63209849 is about 7950.4621878228. The cubic root of 63209849 is about 398.3470307240.

The spelling of 63209849 in words is "sixty-three million, two hundred nine thousand, eight hundred forty-nine".