89147481 has 4 divisors (see below), whose sum is σ = 118863312. Its totient is φ = 59431652.

The previous prime is 89147459. The next prime is 89147491. The reversal of 89147481 is 18474198.

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 89147481 - 2⁶ = 89147417 is a prime.

It is a super-2 number, since 2×89147481² = 15894546737290722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (89147441) 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, 14857911 + ... + 14857916.

It is an arithmetic number, because the mean of its divisors is an integer number (29715828).

Almost surely, 2^89147481 is an apocalyptic number.

It is an amenable number.

89147481 is a deficient number, since it is larger than the sum of its proper divisors (29715831).

89147481 is a wasteful number, since it uses less digits than its factorization.

89147481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29715830.

The product of its digits is 64512, while the sum is 42.

The square root of 89147481 is about 9441.7943739524. The cubic root of 89147481 is about 446.7209895936.

The spelling of 89147481 in words is "eighty-nine million, one hundred forty-seven thousand, four hundred eighty-one".