63740613 has 16 divisors (see below), whose sum is σ = 88891776. Its totient is φ = 40550400.

The previous prime is 63740581. The next prime is 63740629. The reversal of 63740613 is 31604736.

It is not a de Polignac number, because 63740613 - 2⁵ = 63740581 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63740653) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39013 + ... + 40613.

It is an arithmetic number, because the mean of its divisors is an integer number (5555736).

Almost surely, 2^63740613 is an apocalyptic number.

It is an amenable number.

63740613 is a deficient number, since it is larger than the sum of its proper divisors (25151163).

63740613 is a wasteful number, since it uses less digits than its factorization.

63740613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2204.

The product of its (nonzero) digits is 9072, while the sum is 30.

The square root of 63740613 is about 7983.7718529527. The cubic root of 63740613 is about 399.4588787162.

The spelling of 63740613 in words is "sixty-three million, seven hundred forty thousand, six hundred thirteen".