91692061 has 4 divisors (see below), whose sum is σ = 92852800. Its totient is φ = 90531324.

The previous prime is 91692059. The next prime is 91692071. The reversal of 91692061 is 16029619.

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: 16029619 = 139 ⋅115321.

It is a cyclic number.

It is not a de Polignac number, because 91692061 - 2¹ = 91692059 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 (91692001) 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, 580251 + ... + 580408.

It is an arithmetic number, because the mean of its divisors is an integer number (23213200).

Almost surely, 2^91692061 is an apocalyptic number.

It is an amenable number.

91692061 is a deficient number, since it is larger than the sum of its proper divisors (1160739).

91692061 is a wasteful number, since it uses less digits than its factorization.

91692061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1160738.

The product of its (nonzero) digits is 5832, while the sum is 34.

The square root of 91692061 is about 9575.5971615351. The cubic root of 91692061 is about 450.9315041920.

The spelling of 91692061 in words is "ninety-one million, six hundred ninety-two thousand, sixty-one".