1997483864 has 32 divisors (see below), whose sum is σ = 3820679280. Its totient is φ = 978789504.

The previous prime is 1997483809. The next prime is 1997483897. The reversal of 1997483864 is 4683847991.

It is a congruent number.

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, 96134 + ... + 115050.

Almost surely, 2^1997483864 is an apocalyptic number.

It is an amenable number.

1997483864 is a deficient number, since it is larger than the sum of its proper divisors (1823195416).

1997483864 is a wasteful number, since it uses less digits than its factorization.

1997483864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19187 (or 19183 counting only the distinct ones).

The product of its digits is 10450944, while the sum is 59.

The square root of 1997483864 is about 44693.2194409846. The cubic root of 1997483864 is about 1259.3924727191.

The spelling of 1997483864 in words is "one billion, nine hundred ninety-seven million, four hundred eighty-three thousand, eight hundred sixty-four".