1997413 has 12 divisors (see below), whose sum is σ = 2304288. Its totient is φ = 1716840.

The previous prime is 1997407. The next prime is 1997419. The reversal of 1997413 is 3147991.

It is an interprime number because it is at equal distance from previous prime (1997407) and next prime (1997419).

It is not a de Polignac number, because 1997413 - 2⁹ = 1996901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1997419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3720 + ... + 4222.

It is an arithmetic number, because the mean of its divisors is an integer number (192024).

2^1997413 is an apocalyptic number.

It is an amenable number.

1997413 is a deficient number, since it is larger than the sum of its proper divisors (306875).

1997413 is a wasteful number, since it uses less digits than its factorization.

1997413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552 (or 533 counting only the distinct ones).

The product of its digits is 6804, while the sum is 34.

The square root of 1997413 is about 1413.2986237876. The cubic root of 1997413 is about 125.9377579542.

The spelling of 1997413 in words is "one million, nine hundred ninety-seven thousand, four hundred thirteen".