718825 has 6 divisors (see below), whose sum is σ = 891374. Its totient is φ = 575040.

The previous prime is 718813. The next prime is 718841. The reversal of 718825 is 528817.

It can be written as a sum of positive squares in 3 ways, for example, as 169744 + 549081 = 412^2 + 741^2 .

It is not a de Polignac number, because 718825 - 2¹⁵ = 686057 is a prime.

It is a d-powerful number, because it can be written as 7 + 1 + 8³ + 8⁶ + 2¹⁶ + 5⁸ .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14352 + ... + 14401.

2⁷¹⁸⁸²⁵ is an apocalyptic number.

It is an amenable number.

718825 is a deficient number, since it is larger than the sum of its proper divisors (172549).

718825 is a wasteful number, since it uses less digits than its factorization.

718825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28763 (or 28758 counting only the distinct ones).

The product of its digits is 4480, while the sum is 31.

The square root of 718825 is about 847.8354793237. The cubic root of 718825 is about 89.5793123608.

It can be divided in two parts, 7188 and 25, that multiplied together give a triangular number (179700 = T₅₉₉).

The spelling of 718825 in words is "seven hundred eighteen thousand, eight hundred twenty-five".