91950830 has 8 divisors (see below), whose sum is σ = 165511512. Its totient is φ = 36780328.

The previous prime is 91950829. The next prime is 91950839. The reversal of 91950830 is 3805919.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91950839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4597532 + ... + 4597551.

It is an arithmetic number, because the mean of its divisors is an integer number (20688939).

Almost surely, 2^91950830 is an apocalyptic number.

91950830 is a deficient number, since it is larger than the sum of its proper divisors (73560682).

91950830 is a wasteful number, since it uses less digits than its factorization.

91950830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9195090.

The product of its (nonzero) digits is 9720, while the sum is 35.

The square root of 91950830 is about 9589.0995406242. The cubic root of 91950830 is about 451.3553049563.

The spelling of 91950830 in words is "ninety-one million, nine hundred fifty thousand, eight hundred thirty".