197913772 has 12 divisors (see below), whose sum is σ = 395827600. Its totient is φ = 84820176.

The previous prime is 197913769. The next prime is 197913787. The reversal of 197913772 is 277319791.

197913772 is an admirable number.

It is a super-2 number, since 2×197913772² = 78339722294535968, which contains 22 as substring.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

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 3 ways as a sum of consecutive naturals, for example, 3534147 + ... + 3534202.

Almost surely, 2^197913772 is an apocalyptic number.

It is an amenable number.

197913772 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

197913772 is a wasteful number, since it uses less digits than its factorization.

197913772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7068360 (or 7068358 counting only the distinct ones).

The product of its digits is 166698, while the sum is 46.

The square root of 197913772 is about 14068.1829672492. The cubic root of 197913772 is about 582.7630469679.

It can be divided in two parts, 1979 and 13772, that added together give a palindrome (15751).

The spelling of 197913772 in words is "one hundred ninety-seven million, nine hundred thirteen thousand, seven hundred seventy-two".