7988385 has 16 divisors (see below), whose sum is σ = 13533696. Its totient is φ = 4009728.

The previous prime is 7988381. The next prime is 7988389. The reversal of 7988385 is 5838897.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (7988381) and next prime (7988389).

It is not a de Polignac number, because 7988385 - 2² = 7988381 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7988381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15409 + ... + 15918.

It is an arithmetic number, because the mean of its divisors is an integer number (845856).

Almost surely, 2^7988385 is an apocalyptic number.

It is an amenable number.

7988385 is a deficient number, since it is larger than the sum of its proper divisors (5545311).

7988385 is a wasteful number, since it uses less digits than its factorization.

7988385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31352.

The product of its digits is 483840, while the sum is 48.

The square root of 7988385 is about 2826.3731176191. The cubic root of 7988385 is about 199.9031614524.

The spelling of 7988385 in words is "seven million, nine hundred eighty-eight thousand, three hundred eighty-five".