1997674 has 16 divisors (see below), whose sum is σ = 3443328. Its totient is φ = 851472.

The previous prime is 1997663. The next prime is 1997683. The reversal of 1997674 is 4767991.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1997674.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3859 + ... + 4345.

It is an arithmetic number, because the mean of its divisors is an integer number (215208).

2^1997674 is an apocalyptic number.

1997674 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1997674 is a deficient number, since it is larger than the sum of its proper divisors (1445654).

1997674 is a wasteful number, since it uses less digits than its factorization.

1997674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 789.

The product of its digits is 95256, while the sum is 43.

The square root of 1997674 is about 1413.3909579448. The cubic root of 1997674 is about 125.9432431031.

The spelling of 1997674 in words is "one million, nine hundred ninety-seven thousand, six hundred seventy-four".