4538507 has 4 divisors (see below), whose sum is σ = 4805496. Its totient is φ = 4271520.

The previous prime is 4538503. The next prime is 4538509. The reversal of 4538507 is 7058354.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7058354 = 2 ⋅3529177.

It is a cyclic number.

It is not a de Polignac number, because 4538507 - 2² = 4538503 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4538503) 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, 133469 + ... + 133502.

It is an arithmetic number, because the mean of its divisors is an integer number (1201374).

Almost surely, 2^4538507 is an apocalyptic number.

4538507 is a deficient number, since it is larger than the sum of its proper divisors (266989).

4538507 is a wasteful number, since it uses less digits than its factorization.

4538507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266988.

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 4538507 is about 2130.3771966485. The cubic root of 4538507 is about 165.5659415399.

The spelling of 4538507 in words is "four million, five hundred thirty-eight thousand, five hundred seven".