1973198233 has 4 divisors (see below), whose sum is σ = 2019086608. Its totient is φ = 1927309860.

The previous prime is 1973198219. The next prime is 1973198237. The reversal of 1973198233 is 3328913791.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1973198233 is a prime.

It is a super-2 number, since 2×1973198233² = 7787022533428644578, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1973198237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22944123 + ... + 22944208.

It is an arithmetic number, because the mean of its divisors is an integer number (504771652).

Almost surely, 2^1973198233 is an apocalyptic number.

It is an amenable number.

1973198233 is a deficient number, since it is larger than the sum of its proper divisors (45888375).

1973198233 is an equidigital number, since it uses as much as digits as its factorization.

1973198233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45888374.

The product of its digits is 244944, while the sum is 46.

The square root of 1973198233 is about 44420.6959985996. The cubic root of 1973198233 is about 1254.2677024968.

The spelling of 1973198233 in words is "one billion, nine hundred seventy-three million, one hundred ninety-eight thousand, two hundred thirty-three".