731625 has 16 divisors (see below), whose sum is σ = 1218048. Its totient is φ = 390000.

The previous prime is 731623. The next prime is 731639. The reversal of 731625 is 526137.

It is not a de Polignac number, because 731625 - 2¹ = 731623 is a prime.

It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 731595 and 731604.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 731625.

It is not an unprimeable number, because it can be changed into a prime (731623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 601 + ... + 1350.

It is an arithmetic number, because the mean of its divisors is an integer number (76128).

2⁷³¹⁶²⁵ is an apocalyptic number.

731625 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

731625 is a deficient number, since it is larger than the sum of its proper divisors (486423).

731625 is a wasteful number, since it uses less digits than its factorization.

731625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1969 (or 1959 counting only the distinct ones).

The product of its digits is 1260, while the sum is 24.

The square root of 731625 is about 855.3508052256. The cubic root of 731625 is about 90.1078952908.

The spelling of 731625 in words is "seven hundred thirty-one thousand, six hundred twenty-five".