63402849 has 6 divisors (see below), whose sum is σ = 91581906. Its totient is φ = 42268560.

The previous prime is 63402847. The next prime is 63402863. The reversal of 63402849 is 94820436.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 51624225 + 11778624 = 7185^2 + 3432^2 .

It is not a de Polignac number, because 63402849 - 2¹ = 63402847 is a prime.

It is a super-2 number, since 2×63402849² = 8039842522633602, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (63402847) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3522372 + ... + 3522389.

It is an arithmetic number, because the mean of its divisors is an integer number (15263651).

Almost surely, 2^63402849 is an apocalyptic number.

It is an amenable number.

63402849 is a deficient number, since it is larger than the sum of its proper divisors (28179057).

63402849 is a wasteful number, since it uses less digits than its factorization.

63402849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7044767 (or 7044764 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 63402849 is about 7962.5905960309. The cubic root of 63402849 is about 398.7520459927.

The spelling of 63402849 in words is "sixty-three million, four hundred two thousand, eight hundred forty-nine".