1320471 has 6 divisors (see below), whose sum is σ = 1907360. Its totient is φ = 880308.

The previous prime is 1320437. The next prime is 1320533. The reversal of 1320471 is 1740231.

It is not a de Polignac number, because 1320471 - 2⁷ = 1320343 is a prime.

It is a super-3 number, since 3×1320471³ = 6907292669384541333, which contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320421) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 73351 + ... + 73368.

2^1320471 is an apocalyptic number.

1320471 is a deficient number, since it is larger than the sum of its proper divisors (586889).

1320471 is a wasteful number, since it uses less digits than its factorization.

1320471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146725 (or 146722 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 1320471 is about 1149.1174874659. The cubic root of 1320471 is about 109.7091766885.

The spelling of 1320471 in words is "one million, three hundred twenty thousand, four hundred seventy-one".