5439657 has 4 divisors (see below), whose sum is σ = 7252880. Its totient is φ = 3626436.

The previous prime is 5439653. The next prime is 5439667. The reversal of 5439657 is 7569345.

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 5439657 - 2² = 5439653 is a prime.

It is a D-number.

It is a Duffinian number.

5439657 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (5439653) 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, 906607 + ... + 906612.

It is an arithmetic number, because the mean of its divisors is an integer number (1813220).

Almost surely, 2^5439657 is an apocalyptic number.

It is an amenable number.

5439657 is a deficient number, since it is larger than the sum of its proper divisors (1813223).

5439657 is a wasteful number, since it uses less digits than its factorization.

5439657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1813222.

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

The square root of 5439657 is about 2332.3072267607. The cubic root of 5439657 is about 175.8694904543.

The spelling of 5439657 in words is "five million, four hundred thirty-nine thousand, six hundred fifty-seven".