7485490393 has 4 divisors (see below), whose sum is σ = 7487423028. Its totient is φ = 7483557760.

The previous prime is 7485490381. The next prime is 7485490427. The reversal of 7485490393 is 3930945847.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3930945847 = 23 ⋅170910689.

It can be written as a sum of positive squares in 2 ways, for example, as 6553226304 + 932264089 = 80952^2 + 30533^2 .

It is a cyclic number.

It is not a de Polignac number, because 7485490393 - 2¹³ = 7485482201 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7485490393.

It is not an unprimeable number, because it can be changed into a prime (7485490343) 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, 960496 + ... + 968257.

It is an arithmetic number, because the mean of its divisors is an integer number (1871855757).

Almost surely, 2^7485490393 is an apocalyptic number.

It is an amenable number.

7485490393 is a deficient number, since it is larger than the sum of its proper divisors (1932635).

7485490393 is a wasteful number, since it uses less digits than its factorization.

7485490393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1932634.

The product of its (nonzero) digits is 3265920, while the sum is 52.

The square root of 7485490393 is about 86518.7285678656. The cubic root of 7485490393 is about 1956.1707125599.

The spelling of 7485490393 in words is "seven billion, four hundred eighty-five million, four hundred ninety thousand, three hundred ninety-three".