734077921 has 8 divisors (see below), whose sum is σ = 740727144. Its totient is φ = 727447680.

The previous prime is 734077909. The next prime is 734077933. The reversal of 734077921 is 129770437.

It is an interprime number because it is at equal distance from previous prime (734077909) and next prime (734077933).

It can be written as a sum of positive squares in 4 ways, for example, as 7182400 + 726895521 = 2680^2 + 26961^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 734077921 - 2¹¹ = 734075873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (734077991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79611 + ... + 88351.

It is an arithmetic number, because the mean of its divisors is an integer number (92590893).

Almost surely, 2^734077921 is an apocalyptic number.

It is an amenable number.

734077921 is a deficient number, since it is larger than the sum of its proper divisors (6649223).

734077921 is a wasteful number, since it uses less digits than its factorization.

734077921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9491.

The product of its (nonzero) digits is 74088, while the sum is 40.

The square root of 734077921 is about 27093.8723884202. The cubic root of 734077921 is about 902.0848461574.

The spelling of 734077921 in words is "seven hundred thirty-four million, seventy-seven thousand, nine hundred twenty-one".