754673321 has 4 divisors (see below), whose sum is σ = 754792644. Its totient is φ = 754554000.

The previous prime is 754673317. The next prime is 754673323. The reversal of 754673321 is 123376457.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 496621225 + 258052096 = 22285^2 + 16064^2 .

It is a cyclic number.

It is not a de Polignac number, because 754673321 - 2² = 754673317 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (754673323) 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, 49610 + ... + 63011.

It is an arithmetic number, because the mean of its divisors is an integer number (188698161).

Almost surely, 2^754673321 is an apocalyptic number.

It is an amenable number.

754673321 is a deficient number, since it is larger than the sum of its proper divisors (119323).

754673321 is a wasteful number, since it uses less digits than its factorization.

754673321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119322.

The product of its digits is 105840, while the sum is 38.

The square root of 754673321 is about 27471.3181518470. The cubic root of 754673321 is about 910.4434987505.

The spelling of 754673321 in words is "seven hundred fifty-four million, six hundred seventy-three thousand, three hundred twenty-one".