89740219 has 2 divisors, whose sum is σ = 89740220. Its totient is φ = 89740218.

The previous prime is 89740177. The next prime is 89740241. The reversal of 89740219 is 91204798.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 89740219 - 2⁹ = 89739707 is a prime.

It is a super-2 number, since 2×89740219² = 16106613812335922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (89740019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44870109 + 44870110.

It is an arithmetic number, because the mean of its divisors is an integer number (44870110).

Almost surely, 2^89740219 is an apocalyptic number.

89740219 is a deficient number, since it is larger than the sum of its proper divisors (1).

89740219 is an equidigital number, since it uses as much as digits as its factorization.

89740219 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 40.

The square root of 89740219 is about 9473.1314252469. The cubic root of 89740219 is about 447.7088799417.

The spelling of 89740219 in words is "eighty-nine million, seven hundred forty thousand, two hundred nineteen".