1997009010 has 48 divisors (see below), whose sum is σ = 5312983104. Its totient is φ = 520150176.

The previous prime is 1997009009. The next prime is 1997009059. The reversal of 1997009010 is 109007991.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 254142 + ... + 261881.

It is an arithmetic number, because the mean of its divisors is an integer number (110687148).

Almost surely, 2^1997009010 is an apocalyptic number.

1997009010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1997009010 is an abundant number, since it is smaller than the sum of its proper divisors (3315974094).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1997009010 is a wasteful number, since it uses less digits than its factorization.

1997009010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516079 (or 516076 counting only the distinct ones).

The product of its (nonzero) digits is 5103, while the sum is 36.

The square root of 1997009010 is about 44687.9067533936. The cubic root of 1997009010 is about 1259.2926679999.

The spelling of 1997009010 in words is "one billion, nine hundred ninety-seven million, nine thousand, ten".