197722992 has 40 divisors (see below), whose sum is σ = 523247760. Its totient is φ = 64299520.

The previous prime is 197722981. The next prime is 197722997. The reversal of 197722992 is 299227791.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197722997) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48267 + ... + 52202.

It is an arithmetic number, because the mean of its divisors is an integer number (13081194).

Almost surely, 2^197722992 is an apocalyptic number.

197722992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

197722992 is an abundant number, since it is smaller than the sum of its proper divisors (325524768).

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

197722992 is a wasteful number, since it uses less digits than its factorization.

197722992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100521 (or 100515 counting only the distinct ones).

The product of its digits is 285768, while the sum is 48.

The square root of 197722992 is about 14061.4007837057. The cubic root of 197722992 is about 582.5757342877.

The spelling of 197722992 in words is "one hundred ninety-seven million, seven hundred twenty-two thousand, nine hundred ninety-two".