89478251 has 2 divisors, whose sum is σ = 89478252. Its totient is φ = 89478250.

The previous prime is 89478241. The next prime is 89478269. The reversal of 89478251 is 15287498.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 89478251 - 2⁶ = 89478187 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (89478241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44739125 + 44739126.

It is an arithmetic number, because the mean of its divisors is an integer number (44739126).

Almost surely, 2^89478251 is an apocalyptic number.

89478251 is a deficient number, since it is larger than the sum of its proper divisors (1).

89478251 is an equidigital number, since it uses as much as digits as its factorization.

89478251 is an evil number, because the sum of its binary digits is even.

The product of its digits is 161280, while the sum is 44.

The square root of 89478251 is about 9459.2944240044. The cubic root of 89478251 is about 447.2728074932.

The spelling of 89478251 in words is "eighty-nine million, four hundred seventy-eight thousand, two hundred fifty-one".