187297996 has 12 divisors (see below), whose sum is σ = 336630448. Its totient is φ = 91117872.

The previous prime is 187297973. The next prime is 187297997. The reversal of 187297996 is 699792781.

It is a happy number.

187297996 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×187297996³ (a number of 26 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 187297996.

It is not an unprimeable number, because it can be changed into a prime (187297997) 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, 632616 + ... + 632911.

Almost surely, 2^187297996 is an apocalyptic number.

It is an amenable number.

187297996 is a deficient number, since it is larger than the sum of its proper divisors (149332452).

187297996 is a wasteful number, since it uses less digits than its factorization.

187297996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1265568 (or 1265566 counting only the distinct ones).

The product of its digits is 3429216, while the sum is 58.

The square root of 187297996 is about 13685.6858067106. The cubic root of 187297996 is about 572.1515035460.

The spelling of 187297996 in words is "one hundred eighty-seven million, two hundred ninety-seven thousand, nine hundred ninety-six".