734953721 has 4 divisors (see below), whose sum is σ = 752045712. Its totient is φ = 717861732.

The previous prime is 734953679. The next prime is 734953759. The reversal of 734953721 is 127359437.

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 734953721 - 2¹⁴ = 734937337 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (734953781) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8545931 + ... + 8546016.

It is an arithmetic number, because the mean of its divisors is an integer number (188011428).

Almost surely, 2^734953721 is an apocalyptic number.

It is an amenable number.

734953721 is a deficient number, since it is larger than the sum of its proper divisors (17091991).

734953721 is a wasteful number, since it uses less digits than its factorization.

734953721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17091990.

The product of its digits is 158760, while the sum is 41.

The square root of 734953721 is about 27110.0298967006. The cubic root of 734953721 is about 902.4434511060.

The spelling of 734953721 in words is "seven hundred thirty-four million, nine hundred fifty-three thousand, seven hundred twenty-one".