89421767 has 2 divisors, whose sum is σ = 89421768. Its totient is φ = 89421766.

The previous prime is 89421737. The next prime is 89421781. The reversal of 89421767 is 76712498.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 89421767 - 2²⁶ = 22312903 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89421737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44710883 + 44710884.

It is an arithmetic number, because the mean of its divisors is an integer number (44710884).

Almost surely, 2^89421767 is an apocalyptic number.

89421767 is a deficient number, since it is larger than the sum of its proper divisors (1).

89421767 is an equidigital number, since it uses as much as digits as its factorization.

89421767 is an evil number, because the sum of its binary digits is even.

The product of its digits is 169344, while the sum is 44.

The square root of 89421767 is about 9456.3083177316. The cubic root of 89421767 is about 447.1786726062.

The spelling of 89421767 in words is "eighty-nine million, four hundred twenty-one thousand, seven hundred sixty-seven".