5578657 has 4 divisors (see below), whose sum is σ = 6375616. Its totient is φ = 4781700.

The previous prime is 5578637. The next prime is 5578663. The reversal of 5578657 is 7568755.

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, and also an emirpimes, since its reverse is a distinct semiprime: 7568755 = 5 ⋅1513751.

It is not a de Polignac number, because 5578657 - 2¹⁵ = 5545889 is a prime.

It is a super-2 number, since 2×5578657² = 62242827847298, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5578637) 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, 398469 + ... + 398482.

It is an arithmetic number, because the mean of its divisors is an integer number (1593904).

Almost surely, 2^5578657 is an apocalyptic number.

It is an amenable number.

5578657 is a deficient number, since it is larger than the sum of its proper divisors (796959).

5578657 is an equidigital number, since it uses as much as digits as its factorization.

5578657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796958.

The product of its digits is 294000, while the sum is 43.

The square root of 5578657 is about 2361.9180764794. The cubic root of 5578657 is about 177.3549115236.

The spelling of 5578657 in words is "five million, five hundred seventy-eight thousand, six hundred fifty-seven".