5231906 has 4 divisors (see below), whose sum is σ = 7847862. Its totient is φ = 2615952.

The previous prime is 5231881. The next prime is 5231917. The reversal of 5231906 is 6091325.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 4583881 + 648025 = 2141^2 + 805^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1307975 + ... + 1307978.

Almost surely, 2^5231906 is an apocalyptic number.

5231906 is a deficient number, since it is larger than the sum of its proper divisors (2615956).

5231906 is a wasteful number, since it uses less digits than its factorization.

5231906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2615955.

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 5231906 is about 2287.3360050504. The cubic root of 5231906 is about 173.6014350367.

The spelling of 5231906 in words is "five million, two hundred thirty-one thousand, nine hundred six".