7949385 has 24 divisors (see below), whose sum is σ = 13854984. Its totient is φ = 4216320.

The previous prime is 7949377. The next prime is 7949399. The reversal of 7949385 is 5839497.

It can be written as a sum of positive squares in 4 ways, for example, as 3873024 + 4076361 = 1968^2 + 2019^2 .

It is not a de Polignac number, because 7949385 - 2³ = 7949377 is a prime.

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

It is a d-powerful number, because it can be written as 7⁵ + 9³ + 4¹⁰ + 9⁷ + 3³ + 8⁷ + 5⁵ .

7949385 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 7949385.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10479 + ... + 11211.

It is an arithmetic number, because the mean of its divisors is an integer number (577291).

Almost surely, 2^7949385 is an apocalyptic number.

It is an amenable number.

7949385 is a deficient number, since it is larger than the sum of its proper divisors (5905599).

7949385 is a wasteful number, since it uses less digits than its factorization.

7949385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 985 (or 982 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 7949385 is about 2819.4653748539. The cubic root of 7949385 is about 199.5773156524.

The spelling of 7949385 in words is "seven million, nine hundred forty-nine thousand, three hundred eighty-five".