1997233067 has 4 divisors (see below), whose sum is σ = 2021296200. Its totient is φ = 1973169936.

The previous prime is 1997233057. The next prime is 1997233081. The reversal of 1997233067 is 7603327991.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1997233067 - 2¹⁰ = 1997232043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1997233057) 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 3 ways as a sum of consecutive naturals, for example, 12031442 + ... + 12031607.

It is an arithmetic number, because the mean of its divisors is an integer number (505324050).

Almost surely, 2^1997233067 is an apocalyptic number.

1997233067 is a deficient number, since it is larger than the sum of its proper divisors (24063133).

1997233067 is an equidigital number, since it uses as much as digits as its factorization.

1997233067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24063132.

The product of its (nonzero) digits is 428652, while the sum is 47.

The square root of 1997233067 is about 44690.4135917313. The cubic root of 1997233067 is about 1259.3397622267.

The spelling of 1997233067 in words is "one billion, nine hundred ninety-seven million, two hundred thirty-three thousand, sixty-seven".