383913273 has 4 divisors (see below), whose sum is σ = 511884368. Its totient is φ = 255942180.

The previous prime is 383913209. The next prime is 383913347. The reversal of 383913273 is 372319383.

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 not a de Polignac number, because 383913273 - 2⁶ = 383913209 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 (383913203) 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, 63985543 + ... + 63985548.

It is an arithmetic number, because the mean of its divisors is an integer number (127971092).

Almost surely, 2^383913273 is an apocalyptic number.

It is an amenable number.

383913273 is a deficient number, since it is larger than the sum of its proper divisors (127971095).

383913273 is a wasteful number, since it uses less digits than its factorization.

383913273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127971094.

The product of its digits is 81648, while the sum is 39.

The square root of 383913273 is about 19593.7049329625. The cubic root of 383913273 is about 726.7935130761.

The spelling of 383913273 in words is "three hundred eighty-three million, nine hundred thirteen thousand, two hundred seventy-three".