66048393 has 4 divisors (see below), whose sum is σ = 88064528. Its totient is φ = 44032260.

The previous prime is 66048379. The next prime is 66048397. The reversal of 66048393 is 39384066.

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 66048393 - 2⁵ = 66048361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66048397) 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, 11008063 + ... + 11008068.

It is an arithmetic number, because the mean of its divisors is an integer number (22016132).

Almost surely, 2^66048393 is an apocalyptic number.

It is an amenable number.

66048393 is a deficient number, since it is larger than the sum of its proper divisors (22016135).

66048393 is a wasteful number, since it uses less digits than its factorization.

66048393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22016134.

The product of its (nonzero) digits is 93312, while the sum is 39.

The square root of 66048393 is about 8127.0162421395. The cubic root of 66048393 is about 404.2227495113. Note that the first 3 decimals are identical.

The spelling of 66048393 in words is "sixty-six million, forty-eight thousand, three hundred ninety-three".