427929273 has 18 divisors (see below), whose sum is σ = 624101114. Its totient is φ = 282551904.

The previous prime is 427929233. The next prime is 427929289. The reversal of 427929273 is 372929724.

It can be written as a sum of positive squares in only one way, i.e., 237406464 + 190522809 = 15408^2 + 13803^2 .

It is not a de Polignac number, because 427929273 - 2²⁰ = 426880697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (427929233) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 100965 + ... + 105117.

Almost surely, 2^427929273 is an apocalyptic number.

It is an amenable number.

427929273 is a deficient number, since it is larger than the sum of its proper divisors (196171841).

427929273 is a wasteful number, since it uses less digits than its factorization.

427929273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4373 (or 4263 counting only the distinct ones).

The product of its digits is 381024, while the sum is 45.

The square root of 427929273 is about 20686.4514356619. The cubic root of 427929273 is about 753.5706905802.

The spelling of 427929273 in words is "four hundred twenty-seven million, nine hundred twenty-nine thousand, two hundred seventy-three".