734748221 has 4 divisors (see below), whose sum is σ = 773419200. Its totient is φ = 696077244.

The previous prime is 734748199. The next prime is 734748229. The reversal of 734748221 is 122847437.

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, and also an emirpimes, since its reverse is a distinct semiprime: 122847437 = 37 ⋅3320201.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-734748221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (734748229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19335461 + ... + 19335498.

It is an arithmetic number, because the mean of its divisors is an integer number (193354800).

Almost surely, 2^734748221 is an apocalyptic number.

It is an amenable number.

734748221 is a deficient number, since it is larger than the sum of its proper divisors (38670979).

734748221 is a wasteful number, since it uses less digits than its factorization.

734748221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38670978.

The product of its digits is 75264, while the sum is 38.

The square root of 734748221 is about 27106.2395215567. The cubic root of 734748221 is about 902.3593326954.

The spelling of 734748221 in words is "seven hundred thirty-four million, seven hundred forty-eight thousand, two hundred twenty-one".