32197561 has 8 divisors (see below), whose sum is σ = 36258048. Its totient is φ = 28326000.

The previous prime is 32197513. The next prime is 32197567. The reversal of 32197561 is 16579123.

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

It is a cyclic number.

It is not a de Polignac number, because 32197561 - 2¹³ = 32189369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32197567) 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, 46870 + ... + 47551.

It is an arithmetic number, because the mean of its divisors is an integer number (4532256).

Almost surely, 2^32197561 is an apocalyptic number.

32197561 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

32197561 is a deficient number, since it is larger than the sum of its proper divisors (4060487).

32197561 is a wasteful number, since it uses less digits than its factorization.

32197561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94463.

The product of its digits is 11340, while the sum is 34.

The square root of 32197561 is about 5674.2894709382. The cubic root of 32197561 is about 318.1322215608.

The spelling of 32197561 in words is "thirty-two million, one hundred ninety-seven thousand, five hundred sixty-one".