5129686 has 4 divisors (see below), whose sum is σ = 7694532. Its totient is φ = 2564842.

The previous prime is 5129681. The next prime is 5129731. The reversal of 5129686 is 6869215.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6869215 = 5 ⋅1373843.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5129681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1282420 + ... + 1282423.

It is an arithmetic number, because the mean of its divisors is an integer number (1923633).

Almost surely, 2^5129686 is an apocalyptic number.

5129686 is a deficient number, since it is larger than the sum of its proper divisors (2564846).

5129686 is a wasteful number, since it uses less digits than its factorization.

5129686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2564845.

The product of its digits is 25920, while the sum is 37.

The square root of 5129686 is about 2264.8810123271. The cubic root of 5129686 is about 172.4633934785.

The spelling of 5129686 in words is "five million, one hundred twenty-nine thousand, six hundred eighty-six".