1997379 has 10 divisors (see below), whose sum is σ = 2983860. Its totient is φ = 1331532.

The previous prime is 1997351. The next prime is 1997407. The reversal of 1997379 is 9737991.

It is an interprime number because it is at equal distance from previous prime (1997351) and next prime (1997407).

It is not a de Polignac number, because 1997379 - 2⁹ = 1996867 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1997339) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 12249 + ... + 12410.

It is an arithmetic number, because the mean of its divisors is an integer number (298386).

2^1997379 is an apocalyptic number.

1997379 is a deficient number, since it is larger than the sum of its proper divisors (986481).

1997379 is an equidigital number, since it uses as much as digits as its factorization.

1997379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24671 (or 24662 counting only the distinct ones).

The product of its digits is 107163, while the sum is 45.

The square root of 1997379 is about 1413.2865951391. The cubic root of 1997379 is about 125.9370433785.

The spelling of 1997379 in words is "one million, nine hundred ninety-seven thousand, three hundred seventy-nine".