89396819 has 2 divisors, whose sum is σ = 89396820. Its totient is φ = 89396818.

The previous prime is 89396809. The next prime is 89396833. The reversal of 89396819 is 91869398.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 89396819 - 2⁴ = 89396803 is a prime.

It is a super-2 number, since 2×89396819² = 15983582494637522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (89396809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44698409 + 44698410.

It is an arithmetic number, because the mean of its divisors is an integer number (44698410).

Almost surely, 2^89396819 is an apocalyptic number.

89396819 is a deficient number, since it is larger than the sum of its proper divisors (1).

89396819 is an equidigital number, since it uses as much as digits as its factorization.

89396819 is an evil number, because the sum of its binary digits is even.

The product of its digits is 839808, while the sum is 53.

The square root of 89396819 is about 9454.9891062867. The cubic root of 89396819 is about 447.1370822435.

The spelling of 89396819 in words is "eighty-nine million, three hundred ninety-six thousand, eight hundred nineteen".