196591617 has 16 divisors (see below), whose sum is σ = 294845760. Its totient is φ = 131059620.

The previous prime is 196591567. The next prime is 196591627. The reversal of 196591617 is 716195691.

It is not a de Polignac number, because 196591617 - 2⁷ = 196591489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (196591627) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42759 + ... + 47132.

It is an arithmetic number, because the mean of its divisors is an integer number (18427860).

It is a Proth number, since it is equal to 11999 ⋅ 2¹⁴ + 1 and 11999 < 2¹⁴.

Almost surely, 2^196591617 is an apocalyptic number.

It is an amenable number.

196591617 is a deficient number, since it is larger than the sum of its proper divisors (98254143).

196591617 is an frugal number, since it uses more digits than its factorization.

196591617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89912 (or 89894 counting only the distinct ones).

The product of its digits is 102060, while the sum is 45.

The square root of 196591617 is about 14021.1132582260. The cubic root of 196591617 is about 581.4624380605.

The spelling of 196591617 in words is "one hundred ninety-six million, five hundred ninety-one thousand, six hundred seventeen".