89257961 has 4 divisors (see below), whose sum is σ = 96123972. Its totient is φ = 82391952.

The previous prime is 89257901. The next prime is 89257999. The reversal of 89257961 is 16975298.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16975298 = 2 ⋅8487649.

It can be written as a sum of positive squares in 2 ways, for example, as 24552025 + 64705936 = 4955^2 + 8044^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89257961 is a prime.

It is a super-3 number, since 3×89257961³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (89257901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3432986 + ... + 3433011.

It is an arithmetic number, because the mean of its divisors is an integer number (24030993).

Almost surely, 2^89257961 is an apocalyptic number.

It is an amenable number.

89257961 is a deficient number, since it is larger than the sum of its proper divisors (6866011).

89257961 is a wasteful number, since it uses less digits than its factorization.

89257961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6866010.

The product of its digits is 272160, while the sum is 47.

The square root of 89257961 is about 9447.6431452506. The cubic root of 89257961 is about 446.9054530635.

The spelling of 89257961 in words is "eighty-nine million, two hundred fifty-seven thousand, nine hundred sixty-one".