91659434 has 16 divisors (see below), whose sum is σ = 143001600. Its totient is φ = 44023824.

The previous prime is 91659431. The next prime is 91659479. The reversal of 91659434 is 43495619.

It is a junction number, because it is equal to n+sod(n) for n = 91659391 and 91659400.

It is not an unprimeable number, because it can be changed into a prime (91659431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1994 + ... + 13685.

It is an arithmetic number, because the mean of its divisors is an integer number (8937600).

Almost surely, 2^91659434 is an apocalyptic number.

91659434 is a deficient number, since it is larger than the sum of its proper divisors (51342166).

91659434 is a wasteful number, since it uses less digits than its factorization.

91659434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15797.

The product of its digits is 116640, while the sum is 41.

The square root of 91659434 is about 9573.8933564146. The cubic root of 91659434 is about 450.8780125104.

The spelling of 91659434 in words is "ninety-one million, six hundred fifty-nine thousand, four hundred thirty-four".