73728697 has 4 divisors (see below), whose sum is σ = 84261376. Its totient is φ = 63196020.

The previous prime is 73728691. The next prime is 73728719. The reversal of 73728697 is 79682737.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 73728697 - 2¹⁹ = 73204409 is a prime.

It is a super-2 number, since 2×73728697² = 10871841522635618, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 73728697.

It is not an unprimeable number, because it can be changed into a prime (73728691) 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 3 ways as a sum of consecutive naturals, for example, 5266329 + ... + 5266342.

It is an arithmetic number, because the mean of its divisors is an integer number (21065344).

Almost surely, 2^73728697 is an apocalyptic number.

It is an amenable number.

73728697 is a deficient number, since it is larger than the sum of its proper divisors (10532679).

73728697 is a wasteful number, since it uses less digits than its factorization.

73728697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10532678.

The product of its digits is 889056, while the sum is 49.

The square root of 73728697 is about 8586.5416204663. The cubic root of 73728697 is about 419.3199444355.

The spelling of 73728697 in words is "seventy-three million, seven hundred twenty-eight thousand, six hundred ninety-seven".