197772795 has 24 divisors (see below), whose sum is σ = 373971312. Its totient is φ = 95889600.

The previous prime is 197772709. The next prime is 197772853. The reversal of 197772795 is 597277791.

It is not a de Polignac number, because 197772795 - 2⁷ = 197772667 is a prime.

It is a super-2 number, since 2×197772795² = 78228156884224050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 199276 + ... + 200265.

It is an arithmetic number, because the mean of its divisors is an integer number (15582138).

Almost surely, 2^197772795 is an apocalyptic number.

197772795 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

197772795 is a deficient number, since it is larger than the sum of its proper divisors (176198517).

197772795 is a wasteful number, since it uses less digits than its factorization.

197772795 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399563 (or 399560 counting only the distinct ones).

The product of its digits is 1944810, while the sum is 54.

The square root of 197772795 is about 14063.1715839636. The cubic root of 197772795 is about 582.6246437634.

The spelling of 197772795 in words is "one hundred ninety-seven million, seven hundred seventy-two thousand, seven hundred ninety-five".