1997488 has 20 divisors (see below), whose sum is σ = 3903768. Its totient is φ = 990080.

The previous prime is 1997473. The next prime is 1997503. The reversal of 1997488 is 8847991.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1997473) and next prime (1997503).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1620 + ... + 2572.

2^1997488 is an apocalyptic number.

It is an amenable number.

1997488 is a deficient number, since it is larger than the sum of its proper divisors (1906280).

1997488 is a wasteful number, since it uses less digits than its factorization.

1997488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1092 (or 1086 counting only the distinct ones).

The product of its digits is 145152, while the sum is 46.

The square root of 1997488 is about 1413.3251572091. The cubic root of 1997488 is about 125.9393341953.

It can be divided in two parts, 1997 and 488, that added together give a triangular number (2485 = T₇₀).

The spelling of 1997488 in words is "one million, nine hundred ninety-seven thousand, four hundred eighty-eight".