197408812 has 6 divisors (see below), whose sum is σ = 345465428. Its totient is φ = 98704404.

The previous prime is 197408807. The next prime is 197408819. The reversal of 197408812 is 218804791.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (197408819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24676098 + ... + 24676105.

Almost surely, 2^197408812 is an apocalyptic number.

It is an amenable number.

197408812 is a deficient number, since it is larger than the sum of its proper divisors (148056616).

197408812 is a wasteful number, since it uses less digits than its factorization.

197408812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49352207 (or 49352205 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 40.

The square root of 197408812 is about 14050.2246245389. The cubic root of 197408812 is about 582.2670015597.

The spelling of 197408812 in words is "one hundred ninety-seven million, four hundred eight thousand, eight hundred twelve".