746273221 has 4 divisors (see below), whose sum is σ = 747973600. Its totient is φ = 744572844.

The previous prime is 746273219. The next prime is 746273287. The reversal of 746273221 is 122372647.

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 746273221 - 2¹ = 746273219 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 (746273921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 849531 + ... + 850408.

It is an arithmetic number, because the mean of its divisors is an integer number (186993400).

Almost surely, 2^746273221 is an apocalyptic number.

It is an amenable number.

746273221 is a deficient number, since it is larger than the sum of its proper divisors (1700379).

746273221 is a wasteful number, since it uses less digits than its factorization.

746273221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1700378.

The product of its digits is 28224, while the sum is 34.

The square root of 746273221 is about 27318.0017753861. The cubic root of 746273221 is about 907.0529064779.

The spelling of 746273221 in words is "seven hundred forty-six million, two hundred seventy-three thousand, two hundred twenty-one".