393391485 has 48 divisors (see below), whose sum is σ = 744394560. Its totient is φ = 198754560.

The previous prime is 393391483. The next prime is 393391487. The reversal of 393391485 is 584193393.

It is an interprime number because it is at equal distance from previous prime (393391483) and next prime (393391487).

It is not a de Polignac number, because 393391485 - 2¹ = 393391483 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 393391485.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (393391483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14565 + ... + 31605.

It is an arithmetic number, because the mean of its divisors is an integer number (15508220).

Almost surely, 2^393391485 is an apocalyptic number.

It is an amenable number.

393391485 is a deficient number, since it is larger than the sum of its proper divisors (351003075).

393391485 is a wasteful number, since it uses less digits than its factorization.

393391485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17080 (or 17068 counting only the distinct ones).

The product of its digits is 349920, while the sum is 45.

The square root of 393391485 is about 19834.0990468435. The cubic root of 393391485 is about 732.7260834976.

The spelling of 393391485 in words is "three hundred ninety-three million, three hundred ninety-one thousand, four hundred eighty-five".