197033893 has 32 divisors (see below), whose sum is σ = 250753536. Its totient is φ = 150847488.

The previous prime is 197033891. The next prime is 197033899. The reversal of 197033893 is 398330791.

It is a 7-Lehmer number, since φ(197033893) divides (197033893-1)⁷.

It is a cyclic number.

It is not a de Polignac number, because 197033893 - 2¹ = 197033891 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197033891) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 528055 + ... + 528427.

It is an arithmetic number, because the mean of its divisors is an integer number (7836048).

Almost surely, 2^197033893 is an apocalyptic number.

197033893 is the 8878-th heptagonal number.

It is an amenable number.

197033893 is a deficient number, since it is larger than the sum of its proper divisors (53719643).

197033893 is a wasteful number, since it uses less digits than its factorization.

197033893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 613.

The product of its (nonzero) digits is 122472, while the sum is 43.

The square root of 197033893 is about 14036.8761838238. The cubic root of 197033893 is about 581.8981539449.

The spelling of 197033893 in words is "one hundred ninety-seven million, thirty-three thousand, eight hundred ninety-three".