89197261 has 4 divisors (see below), whose sum is σ = 92074624. Its totient is φ = 86319900.

The previous prime is 89197259. The next prime is 89197291. The reversal of 89197261 is 16279198.

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.

It is a cyclic number.

It is not a de Polignac number, because 89197261 - 2¹ = 89197259 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 (89197201) 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, 1438635 + ... + 1438696.

It is an arithmetic number, because the mean of its divisors is an integer number (23018656).

Almost surely, 2^89197261 is an apocalyptic number.

It is an amenable number.

89197261 is a deficient number, since it is larger than the sum of its proper divisors (2877363).

89197261 is a wasteful number, since it uses less digits than its factorization.

89197261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2877362.

The product of its digits is 54432, while the sum is 43.

The square root of 89197261 is about 9444.4301575055. The cubic root of 89197261 is about 446.8041238662.

The spelling of 89197261 in words is "eighty-nine million, one hundred ninety-seven thousand, two hundred sixty-one".