1947425 has 12 divisors (see below), whose sum is σ = 2456316. Its totient is φ = 1531200.

The previous prime is 1947419. The next prime is 1947431. The reversal of 1947425 is 5247491.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1947419) and next prime (1947431).

It can be written as a sum of positive squares in 6 ways, for example, as 247009 + 1700416 = 497^2 + 1304^2 .

It is not a de Polignac number, because 1947425 - 2¹⁰ = 1946401 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 1947391 and 1947400.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 887 + ... + 2163.

It is an arithmetic number, because the mean of its divisors is an integer number (204693).

2^1947425 is an apocalyptic number.

It is an amenable number.

1947425 is a deficient number, since it is larger than the sum of its proper divisors (508891).

1947425 is a wasteful number, since it uses less digits than its factorization.

1947425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1348 (or 1343 counting only the distinct ones).

The product of its digits is 10080, while the sum is 32.

The square root of 1947425 is about 1395.5017018979. The cubic root of 1947425 is about 124.8782815154.

It can be divided in two parts, 194742 and 5, that multiplied together give a triangular number (973710 = T₁₃₉₅).

The spelling of 1947425 in words is "one million, nine hundred forty-seven thousand, four hundred twenty-five".