89292521 has 2 divisors, whose sum is σ = 89292522. Its totient is φ = 89292520.

The previous prime is 89292499. The next prime is 89292559. The reversal of 89292521 is 12529298.

It is an a-pointer prime, because the next prime (89292559) can be obtained adding 89292521 to its sum of digits (38).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 81090025 + 8202496 = 9005^2 + 2864^2 .

It is a cyclic number.

It is not a de Polignac number, because 89292521 - 2¹⁴ = 89276137 is a prime.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

It is not a weakly prime, because it can be changed into another prime (89292821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44646260 + 44646261.

It is an arithmetic number, because the mean of its divisors is an integer number (44646261).

Almost surely, 2^89292521 is an apocalyptic number.

It is an amenable number.

89292521 is a deficient number, since it is larger than the sum of its proper divisors (1).

89292521 is an equidigital number, since it uses as much as digits as its factorization.

89292521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920, while the sum is 38.

The square root of 89292521 is about 9449.4719958313. The cubic root of 89292521 is about 446.9631250788.

The spelling of 89292521 in words is "eighty-nine million, two hundred ninety-two thousand, five hundred twenty-one".