196606091 has 16 divisors (see below), whose sum is σ = 227984640. Its totient is φ = 167663520.

The previous prime is 196606087. The next prime is 196606121. The reversal of 196606091 is 190606691.

It is a cyclic number.

It is not a de Polignac number, because 196606091 - 2² = 196606087 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (196606391) 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, 16961 + ... + 26093.

It is an arithmetic number, because the mean of its divisors is an integer number (14249040).

Almost surely, 2^196606091 is an apocalyptic number.

196606091 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

196606091 is a deficient number, since it is larger than the sum of its proper divisors (31378549).

196606091 is a wasteful number, since it uses less digits than its factorization.

196606091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9266.

The product of its (nonzero) digits is 17496, while the sum is 38.

The square root of 196606091 is about 14021.6293988965. The cubic root of 196606091 is about 581.4767077106.

The spelling of 196606091 in words is "one hundred ninety-six million, six hundred six thousand, ninety-one".