91966744 has 16 divisors (see below), whose sum is σ = 174621600. Its totient is φ = 45400992.

The previous prime is 91966727. The next prime is 91966747. The reversal of 91966744 is 44766919.

It is a super-3 number, since 3×91966744³ (a number of 25 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 91966694 and 91966703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91966747) 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, 72127 + ... + 73390.

It is an arithmetic number, because the mean of its divisors is an integer number (10913850).

Almost surely, 2^91966744 is an apocalyptic number.

It is an amenable number.

91966744 is a deficient number, since it is larger than the sum of its proper divisors (82654856).

91966744 is a wasteful number, since it uses less digits than its factorization.

91966744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145602 (or 145598 counting only the distinct ones).

The product of its digits is 326592, while the sum is 46.

The square root of 91966744 is about 9589.9293010950. The cubic root of 91966744 is about 451.3813422561.

The spelling of 91966744 in words is "ninety-one million, nine hundred sixty-six thousand, seven hundred forty-four".