7424387 has 4 divisors (see below), whose sum is σ = 7430016. Its totient is φ = 7418760.

The previous prime is 7424381. The next prime is 7424401. The reversal of 7424387 is 7834247.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 7834247 = 191 ⋅41017.

It is a cyclic number.

It is not a de Polignac number, because 7424387 - 2¹⁰ = 7423363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7424381) 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, 353 + ... + 3869.

It is an arithmetic number, because the mean of its divisors is an integer number (1857504).

Almost surely, 2^7424387 is an apocalyptic number.

7424387 is a deficient number, since it is larger than the sum of its proper divisors (5629).

7424387 is a wasteful number, since it uses less digits than its factorization.

7424387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5628.

The product of its digits is 37632, while the sum is 35.

The square root of 7424387 is about 2724.7728345680. The cubic root of 7424387 is about 195.0833481085.

The spelling of 7424387 in words is "seven million, four hundred twenty-four thousand, three hundred eighty-seven".