73734729 has 16 divisors (see below), whose sum is σ = 105419520. Its totient is φ = 45676800.

The previous prime is 73734701. The next prime is 73734737. The reversal of 73734729 is 92743737.

It is not a de Polignac number, because 73734729 - 2¹² = 73730633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (73734799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5122 + ... + 13179.

It is an arithmetic number, because the mean of its divisors is an integer number (6588720).

Almost surely, 2^73734729 is an apocalyptic number.

73734729 is a gapful number since it is divisible by the number (79) formed by its first and last digit.

It is an amenable number.

73734729 is a deficient number, since it is larger than the sum of its proper divisors (31684791).

73734729 is a wasteful number, since it uses less digits than its factorization.

73734729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18400.

The product of its digits is 222264, while the sum is 42.

The square root of 73734729 is about 8586.8928606336. The cubic root of 73734729 is about 419.3313794626.

The spelling of 73734729 in words is "seventy-three million, seven hundred thirty-four thousand, seven hundred twenty-nine".