197615028 has 24 divisors (see below), whose sum is σ = 496571488. Its totient is φ = 60804576.

The previous prime is 197615017. The next prime is 197615063. The reversal of 197615028 is 820516791.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 633226 + ... + 633537.

Almost surely, 2^197615028 is an apocalyptic number.

It is an amenable number.

197615028 is an abundant number, since it is smaller than the sum of its proper divisors (298956460).

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

197615028 is a wasteful number, since it uses less digits than its factorization.

197615028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1266783 (or 1266781 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 39.

The square root of 197615028 is about 14057.5612394185. The cubic root of 197615028 is about 582.4696790814.

The spelling of 197615028 in words is "one hundred ninety-seven million, six hundred fifteen thousand, twenty-eight".