1720496 has 20 divisors (see below), whose sum is σ = 3353952. Its totient is φ = 854976.

The previous prime is 1720471. The next prime is 1720513. The reversal of 1720496 is 6940271.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4505 + ... + 4871.

2^1720496 is an apocalyptic number.

1720496 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1720496 is a deficient number, since it is larger than the sum of its proper divisors (1633456).

1720496 is a wasteful number, since it uses less digits than its factorization.

1720496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 668 (or 662 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 1720496 is about 1311.6767894569. The cubic root of 1720496 is about 119.8260442464.

The spelling of 1720496 in words is "one million, seven hundred twenty thousand, four hundred ninety-six".