91059406 has 8 divisors (see below), whose sum is σ = 139166424. Its totient is φ = 44670600.

The previous prime is 91059403. The next prime is 91059407. The reversal of 91059406 is 60495019.

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 (91059403) 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, 429420 + ... + 429631.

It is an arithmetic number, because the mean of its divisors is an integer number (17395803).

Almost surely, 2^91059406 is an apocalyptic number.

91059406 is a deficient number, since it is larger than the sum of its proper divisors (48107018).

91059406 is a wasteful number, since it uses less digits than its factorization.

91059406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 859106.

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 91059406 is about 9542.5052266163. The cubic root of 91059406 is about 449.8920004197.

The spelling of 91059406 in words is "ninety-one million, fifty-nine thousand, four hundred six".