5178906 has 36 divisors (see below), whose sum is σ = 11857482. Its totient is φ = 1633392.

The previous prime is 5178893. The next prime is 5178919. The reversal of 5178906 is 6098715.

It is an interprime number because it is at equal distance from previous prime (5178893) and next prime (5178919).

It can be written as a sum of positive squares in only one way, i.e., 4447881 + 731025 = 2109^2 + 855^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 6100 + ... + 6896.

Almost surely, 2^5178906 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5178906, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5928741).

5178906 is an abundant number, since it is smaller than the sum of its proper divisors (6678576).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5178906 is a wasteful number, since it uses less digits than its factorization.

5178906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 843 (or 821 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 36.

The square root of 5178906 is about 2275.7209846552. The cubic root of 5178906 is about 173.0132414381.

It can be divided in two parts, 5178 and 906, that added together give a square (6084 = 78²).

The spelling of 5178906 in words is "five million, one hundred seventy-eight thousand, nine hundred six".