51734739 has 24 divisors (see below), whose sum is σ = 84469440. Its totient is φ = 28005264.

The previous prime is 51734729. The next prime is 51734773. The reversal of 51734739 is 93743715.

It is a happy number.

51734739 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 51734739 - 2⁷ = 51734611 is a prime.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 51734697 and 51734706.

It is not an unprimeable number, because it can be changed into a prime (51734729) 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 23 ways as a sum of consecutive naturals, for example, 6469 + ... + 12054.

It is an arithmetic number, because the mean of its divisors is an integer number (3519560).

Almost surely, 2^51734739 is an apocalyptic number.

51734739 is a deficient number, since it is larger than the sum of its proper divisors (32734701).

51734739 is a wasteful number, since it uses less digits than its factorization.

51734739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18559 (or 18552 counting only the distinct ones).

The product of its digits is 79380, while the sum is 39.

The square root of 51734739 is about 7192.6864939326. The cubic root of 51734739 is about 372.6153605734.

The spelling of 51734739 in words is "fifty-one million, seven hundred thirty-four thousand, seven hundred thirty-nine".