89219639 has 2 divisors, whose sum is σ = 89219640. Its totient is φ = 89219638.

The previous prime is 89219609. The next prime is 89219657. The reversal of 89219639 is 93691298.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 89219639 - 2¹² = 89215543 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 89219593 and 89219602.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89219609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44609819 + 44609820.

It is an arithmetic number, because the mean of its divisors is an integer number (44609820).

Almost surely, 2^89219639 is an apocalyptic number.

89219639 is a deficient number, since it is larger than the sum of its proper divisors (1).

89219639 is an equidigital number, since it uses as much as digits as its factorization.

89219639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 209952, while the sum is 47.

The square root of 89219639 is about 9445.6148026478. The cubic root of 89219639 is about 446.8414858006.

The spelling of 89219639 in words is "eighty-nine million, two hundred nineteen thousand, six hundred thirty-nine".