197626461 has 8 divisors (see below), whose sum is σ = 264068064. Its totient is φ = 131467920.

The previous prime is 197626439. The next prime is 197626477. The reversal of 197626461 is 164626791.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 197626461 - 2¹⁰ = 197625437 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197626421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69130 + ... + 71931.

It is an arithmetic number, because the mean of its divisors is an integer number (33008508).

Almost surely, 2^197626461 is an apocalyptic number.

It is an amenable number.

197626461 is a deficient number, since it is larger than the sum of its proper divisors (66441603).

197626461 is a wasteful number, since it uses less digits than its factorization.

197626461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141531.

The product of its digits is 108864, while the sum is 42.

The square root of 197626461 is about 14057.9678830192. The cubic root of 197626461 is about 582.4809117754.

The spelling of 197626461 in words is "one hundred ninety-seven million, six hundred twenty-six thousand, four hundred sixty-one".