63216734 has 16 divisors (see below), whose sum is σ = 108473568. Its totient is φ = 27067392.

The previous prime is 63216731. The next prime is 63216737. The reversal of 63216734 is 43761236.

It is an interprime number because it is at equal distance from previous prime (63216731) and next prime (63216737).

It is a self number, because there is not a number n which added to its sum of digits gives 63216734.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63216731) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28514 + ... + 30650.

It is an arithmetic number, because the mean of its divisors is an integer number (6779598).

Almost surely, 2^63216734 is an apocalyptic number.

63216734 is a deficient number, since it is larger than the sum of its proper divisors (45256834).

63216734 is a wasteful number, since it uses less digits than its factorization.

63216734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4259.

The product of its digits is 18144, while the sum is 32.

The square root of 63216734 is about 7950.8951697277. The cubic root of 63216734 is about 398.3614932367.

The spelling of 63216734 in words is "sixty-three million, two hundred sixteen thousand, seven hundred thirty-four".