91030994 has 8 divisors (see below), whose sum is σ = 136587900. Its totient is φ = 45501696.

The previous prime is 91030991. The next prime is 91031009. The reversal of 91030994 is 49903019.

It can be written as a sum of positive squares in 2 ways, for example, as 89056969 + 1974025 = 9437^2 + 1405^2 .

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (91030991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6722 + ... + 15074.

Almost surely, 2^91030994 is an apocalyptic number.

91030994 is a deficient number, since it is larger than the sum of its proper divisors (45556906).

91030994 is a wasteful number, since it uses less digits than its factorization.

91030994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13804.

The product of its (nonzero) digits is 8748, while the sum is 35.

The square root of 91030994 is about 9541.0164028787. The cubic root of 91030994 is about 449.8452043711.

The spelling of 91030994 in words is "ninety-one million, thirty thousand, nine hundred ninety-four".