1956489 has 8 divisors (see below), whose sum is σ = 2625312. Its totient is φ = 1296000.

The previous prime is 1956481. The next prime is 1956517. The reversal of 1956489 is 9846591.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1956489 - 2³ = 1956481 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1956489.

It is not an unprimeable number, because it can be changed into a prime (1956481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1512 + ... + 2489.

It is an arithmetic number, because the mean of its divisors is an integer number (328164).

2^1956489 is an apocalyptic number.

It is an amenable number.

1956489 is a deficient number, since it is larger than the sum of its proper divisors (668823).

1956489 is a wasteful number, since it uses less digits than its factorization.

1956489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4167.

The product of its digits is 77760, while the sum is 42.

The square root of 1956489 is about 1398.7455093762. The cubic root of 1956489 is about 125.0717241706.

It can be divided in two parts, 1956 and 489, that multiplied together give a square (956484 = 978²).

The spelling of 1956489 in words is "one million, nine hundred fifty-six thousand, four hundred eighty-nine".