63747245 has 4 divisors (see below), whose sum is σ = 76496700. Its totient is φ = 50997792.

The previous prime is 63747241. The next prime is 63747247. The reversal of 63747245 is 54274736.

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 35081929 + 28665316 = 5923^2 + 5354^2 .

It is a cyclic number.

It is not a de Polignac number, because 63747245 - 2² = 63747241 is a prime.

It is a super-2 number, since 2×63747245² = 8127422490180050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 63747199 and 63747208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63747241) 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, 6374720 + ... + 6374729.

It is an arithmetic number, because the mean of its divisors is an integer number (19124175).

Almost surely, 2^63747245 is an apocalyptic number.

It is an amenable number.

63747245 is a deficient number, since it is larger than the sum of its proper divisors (12749455).

63747245 is a wasteful number, since it uses less digits than its factorization.

63747245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12749454.

The product of its digits is 141120, while the sum is 38.

The square root of 63747245 is about 7984.1871846795. The cubic root of 63747245 is about 399.4727323608.

The spelling of 63747245 in words is "sixty-three million, seven hundred forty-seven thousand, two hundred forty-five".