7429385 has 4 divisors (see below), whose sum is σ = 8915268. Its totient is φ = 5943504.

The previous prime is 7429379. The next prime is 7429421. The reversal of 7429385 is 5839247.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5839247 = 1723 ⋅3389.

It can be written as a sum of positive squares in 2 ways, for example, as 891136 + 6538249 = 944^2 + 2557^2 .

It is a cyclic number.

It is not a de Polignac number, because 7429385 - 2¹⁴ = 7413001 is a prime.

It is a super-2 number, since 2×7429385² = 110391522956450, which contains 22 as substring.

It is a Duffinian 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 3 ways as a sum of consecutive naturals, for example, 742934 + ... + 742943.

It is an arithmetic number, because the mean of its divisors is an integer number (2228817).

Almost surely, 2^7429385 is an apocalyptic number.

It is an amenable number.

7429385 is a deficient number, since it is larger than the sum of its proper divisors (1485883).

7429385 is a wasteful number, since it uses less digits than its factorization.

7429385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1485882.

The product of its digits is 60480, while the sum is 38.

The square root of 7429385 is about 2725.6898209444. The cubic root of 7429385 is about 195.1271141399.

The spelling of 7429385 in words is "seven million, four hundred twenty-nine thousand, three hundred eighty-five".