63477749 has 4 divisors (see below), whose sum is σ = 63702336. Its totient is φ = 63253164.

The previous prime is 63477721. The next prime is 63477773. The reversal of 63477749 is 94777436.

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 63477749 - 2¹⁶ = 63412213 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 (63477719) 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, 111869 + ... + 112434.

It is an arithmetic number, because the mean of its divisors is an integer number (15925584).

Almost surely, 2^63477749 is an apocalyptic number.

It is an amenable number.

63477749 is a deficient number, since it is larger than the sum of its proper divisors (224587).

63477749 is a wasteful number, since it uses less digits than its factorization.

63477749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224586.

The product of its digits is 889056, while the sum is 47.

The square root of 63477749 is about 7967.2924510150. The cubic root of 63477749 is about 398.9090041086.

The spelling of 63477749 in words is "sixty-three million, four hundred seventy-seven thousand, seven hundred forty-nine".