4539657 has 4 divisors (see below), whose sum is σ = 6052880. Its totient is φ = 3026436.

The previous prime is 4539653. The next prime is 4539659. The reversal of 4539657 is 7569354.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 4539657 - 2² = 4539653 is a prime.

It is a D-number.

It is a Duffinian number.

4539657 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4539653) 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, 756607 + ... + 756612.

It is an arithmetic number, because the mean of its divisors is an integer number (1513220).

Almost surely, 2^4539657 is an apocalyptic number.

It is an amenable number.

4539657 is a deficient number, since it is larger than the sum of its proper divisors (1513223).

4539657 is a wasteful number, since it uses less digits than its factorization.

4539657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1513222.

The product of its digits is 113400, while the sum is 39.

The square root of 4539657 is about 2130.6470848078. The cubic root of 4539657 is about 165.5799244608.

The spelling of 4539657 in words is "four million, five hundred thirty-nine thousand, six hundred fifty-seven".