91040606 has 8 divisors (see below), whose sum is σ = 137080944. Its totient is φ = 45346960.

The previous prime is 91040603. The next prime is 91040617. The reversal of 91040606 is 60604019.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91040603) 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, 86015 + ... + 87066.

It is an arithmetic number, because the mean of its divisors is an integer number (17135118).

Almost surely, 2^91040606 is an apocalyptic number.

91040606 is a deficient number, since it is larger than the sum of its proper divisors (46040338).

91040606 is a wasteful number, since it uses less digits than its factorization.

91040606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173346.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 91040606 is about 9541.5201095004. The cubic root of 91040606 is about 449.8610369271.

The spelling of 91040606 in words is "ninety-one million, forty thousand, six hundred six".