238993473 has 4 divisors (see below), whose sum is σ = 318657968. Its totient is φ = 159328980.

The previous prime is 238993451. The next prime is 238993481. The reversal of 238993473 is 374399832.

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 238993473 - 2¹⁶ = 238927937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (238993423) 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, 39832243 + ... + 39832248.

It is an arithmetic number, because the mean of its divisors is an integer number (79664492).

Almost surely, 2^238993473 is an apocalyptic number.

It is an amenable number.

238993473 is a deficient number, since it is larger than the sum of its proper divisors (79664495).

238993473 is an equidigital number, since it uses as much as digits as its factorization.

238993473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79664494.

The product of its digits is 979776, while the sum is 48.

The square root of 238993473 is about 15459.4137340327. The cubic root of 238993473 is about 620.5765301496.

It can be divided in two parts, 23899 and 3473, that added together give a palindrome (27372).

The spelling of 238993473 in words is "two hundred thirty-eight million, nine hundred ninety-three thousand, four hundred seventy-three".