197552973 has 4 divisors (see below), whose sum is σ = 263403968. Its totient is φ = 131701980.

The previous prime is 197552963. The next prime is 197552983. The reversal of 197552973 is 379255791.

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, and also an emirpimes, since its reverse is a distinct semiprime: 379255791 = 3 ⋅126418597.

It is an interprime number because it is at equal distance from previous prime (197552963) and next prime (197552983).

It is not a de Polignac number, because 197552973 - 2⁵ = 197552941 is a prime.

It is a super-2 number, since 2×197552973² = 78054354282277458, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197552963) 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, 32925493 + ... + 32925498.

It is an arithmetic number, because the mean of its divisors is an integer number (65850992).

Almost surely, 2^197552973 is an apocalyptic number.

It is an amenable number.

197552973 is a deficient number, since it is larger than the sum of its proper divisors (65850995).

197552973 is an equidigital number, since it uses as much as digits as its factorization.

197552973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65850994.

The product of its digits is 595350, while the sum is 48.

The square root of 197552973 is about 14055.3538909556. The cubic root of 197552973 is about 582.4087037255.

The spelling of 197552973 in words is "one hundred ninety-seven million, five hundred fifty-two thousand, nine hundred seventy-three".