91706413 has 4 divisors (see below), whose sum is σ = 91748800. Its totient is φ = 91664028.

The previous prime is 91706341. The next prime is 91706437. The reversal of 91706413 is 31460719.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31460719 = 47 ⋅669377.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-91706413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91706513) 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, 17763 + ... + 22336.

It is an arithmetic number, because the mean of its divisors is an integer number (22937200).

Almost surely, 2^91706413 is an apocalyptic number.

It is an amenable number.

91706413 is a deficient number, since it is larger than the sum of its proper divisors (42387).

91706413 is a wasteful number, since it uses less digits than its factorization.

91706413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42386.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 91706413 is about 9576.3465371717. The cubic root of 91706413 is about 450.9550301522.

The spelling of 91706413 in words is "ninety-one million, seven hundred six thousand, four hundred thirteen".