1997846475 has 24 divisors (see below), whose sum is σ = 3307703472. Its totient is φ = 1064035200.

The previous prime is 1997846467. The next prime is 1997846479. The reversal of 1997846475 is 5746487991.

It is not a de Polignac number, because 1997846475 - 2³ = 1997846467 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1997846479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36805 + ... + 73145.

It is an arithmetic number, because the mean of its divisors is an integer number (137820978).

Almost surely, 2^1997846475 is an apocalyptic number.

1997846475 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1997846475 is a deficient number, since it is larger than the sum of its proper divisors (1309856997).

1997846475 is a wasteful number, since it uses less digits than its factorization.

1997846475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37087 (or 37082 counting only the distinct ones).

The product of its digits is 15240960, while the sum is 60.

The square root of 1997846475 is about 44697.2759237070. The cubic root of 1997846475 is about 1259.4686755763.

The spelling of 1997846475 in words is "one billion, nine hundred ninety-seven million, eight hundred forty-six thousand, four hundred seventy-five".