393048491 has 8 divisors (see below), whose sum is σ = 429570624. Its totient is φ = 356658120.

The previous prime is 393048443. The next prime is 393048499. The reversal of 393048491 is 194840393.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 393048491 - 2¹⁸ = 392786347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (393048499) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26645 + ... + 38678.

It is an arithmetic number, because the mean of its divisors is an integer number (53696328).

Almost surely, 2^393048491 is an apocalyptic number.

393048491 is a deficient number, since it is larger than the sum of its proper divisors (36522133).

393048491 is a wasteful number, since it uses less digits than its factorization.

393048491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65881.

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 393048491 is about 19825.4505875655. The cubic root of 393048491 is about 732.5130694589.

The spelling of 393048491 in words is "three hundred ninety-three million, forty-eight thousand, four hundred ninety-one".