63742731 has 16 divisors (see below), whose sum is σ = 92085504. Its totient is φ = 38987424.

The previous prime is 63742711. The next prime is 63742733. The reversal of 63742731 is 13724736.

63742731 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 63742731 - 2¹¹ = 63740683 is a prime.

It is a super-2 number, since 2×63742731² = 8126271510676722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 63742692 and 63742701.

It is not an unprimeable number, because it can be changed into a prime (63742733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1620 + ... + 11406.

It is an arithmetic number, because the mean of its divisors is an integer number (5755344).

Almost surely, 2^63742731 is an apocalyptic number.

63742731 is a deficient number, since it is larger than the sum of its proper divisors (28342773).

63742731 is a wasteful number, since it uses less digits than its factorization.

63742731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9970.

The product of its digits is 21168, while the sum is 33.

The square root of 63742731 is about 7983.9044959218. The cubic root of 63742731 is about 399.4633031299.

The spelling of 63742731 in words is "sixty-three million, seven hundred forty-two thousand, seven hundred thirty-one".