89201791 has 4 divisors (see below), whose sum is σ = 101944912. Its totient is φ = 76458672.

The previous prime is 89201779. The next prime is 89201813. The reversal of 89201791 is 19710298.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19710298 = 2 ⋅9855149.

It is a cyclic number.

It is not a de Polignac number, because 89201791 - 2¹⁵ = 89169023 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 89201791.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89201711) 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, 6371550 + ... + 6371563.

It is an arithmetic number, because the mean of its divisors is an integer number (25486228).

Almost surely, 2^89201791 is an apocalyptic number.

89201791 is a deficient number, since it is larger than the sum of its proper divisors (12743121).

89201791 is a wasteful number, since it uses less digits than its factorization.

89201791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12743120.

The product of its (nonzero) digits is 9072, while the sum is 37.

The square root of 89201791 is about 9444.6699783529. The cubic root of 89201791 is about 446.8116875828.

The spelling of 89201791 in words is "eighty-nine million, two hundred one thousand, seven hundred ninety-one".