197873428 has 12 divisors (see below), whose sum is σ = 346487680. Its totient is φ = 98876952.

The previous prime is 197873419. The next prime is 197873437. The reversal of 197873428 is 824378791.

It is an interprime number because it is at equal distance from previous prime (197873419) and next prime (197873437).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7026 + ... + 21097.

Almost surely, 2^197873428 is an apocalyptic number.

It is an amenable number.

197873428 is a deficient number, since it is larger than the sum of its proper divisors (148614252).

197873428 is a wasteful number, since it uses less digits than its factorization.

197873428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29886 (or 29884 counting only the distinct ones).

The product of its digits is 677376, while the sum is 49.

The square root of 197873428 is about 14066.7490202961. The cubic root of 197873428 is about 582.7234462370.

The spelling of 197873428 in words is "one hundred ninety-seven million, eight hundred seventy-three thousand, four hundred twenty-eight".