197876461 has 4 divisors (see below), whose sum is σ = 198044352. Its totient is φ = 197708572.

The previous prime is 197876423. The next prime is 197876509. The reversal of 197876461 is 164678791.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 197876461 - 2¹⁵ = 197843693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197876561) 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, 82165 + ... + 84538.

It is an arithmetic number, because the mean of its divisors is an integer number (49511088).

Almost surely, 2^197876461 is an apocalyptic number.

It is an amenable number.

197876461 is a deficient number, since it is larger than the sum of its proper divisors (167891).

197876461 is a wasteful number, since it uses less digits than its factorization.

197876461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167890.

The product of its digits is 508032, while the sum is 49.

The square root of 197876461 is about 14066.8568273087. The cubic root of 197876461 is about 582.7264235463.

The spelling of 197876461 in words is "one hundred ninety-seven million, eight hundred seventy-six thousand, four hundred sixty-one".