91896547 has 8 divisors (see below), whose sum is σ = 94229696. Its totient is φ = 89572392.

The previous prime is 91896533. The next prime is 91896551. The reversal of 91896547 is 74569819.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-91896547 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 91896547.

It is not an unprimeable number, because it can be changed into a prime (91896517) 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, 21568 + ... + 25474.

It is an arithmetic number, because the mean of its divisors is an integer number (11778712).

Almost surely, 2^91896547 is an apocalyptic number.

91896547 is a deficient number, since it is larger than the sum of its proper divisors (2333149).

91896547 is a wasteful number, since it uses less digits than its factorization.

91896547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4497.

The product of its digits is 544320, while the sum is 49.

The square root of 91896547 is about 9586.2686692999. The cubic root of 91896547 is about 451.2664685533.

The spelling of 91896547 in words is "ninety-one million, eight hundred ninety-six thousand, five hundred forty-seven".