89491293 has 6 divisors (see below), whose sum is σ = 129265214. Its totient is φ = 59660856.

The previous prime is 89491291. The next prime is 89491307. The reversal of 89491293 is 39219498.

It can be written as a sum of positive squares in only one way, i.e., 71876484 + 17614809 = 8478^2 + 4197^2 .

It is not a de Polignac number, because 89491293 - 2¹ = 89491291 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 (89491291) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4971730 + ... + 4971747.

Almost surely, 2^89491293 is an apocalyptic number.

It is an amenable number.

89491293 is a deficient number, since it is larger than the sum of its proper divisors (39773921).

89491293 is a wasteful number, since it uses less digits than its factorization.

89491293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9943483 (or 9943480 counting only the distinct ones).

The product of its digits is 139968, while the sum is 45.

The square root of 89491293 is about 9459.9837737704. The cubic root of 89491293 is about 447.2945373493.

The spelling of 89491293 in words is "eighty-nine million, four hundred ninety-one thousand, two hundred ninety-three".