89020847 has 2 divisors, whose sum is σ = 89020848. Its totient is φ = 89020846.

The previous prime is 89020843. The next prime is 89020861. The reversal of 89020847 is 74802098.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 89020847 - 2² = 89020843 is a prime.

It is a super-2 number, since 2×89020847² = 15849422401194818, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 89020847.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89020843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44510423 + 44510424.

It is an arithmetic number, because the mean of its divisors is an integer number (44510424).

Almost surely, 2^89020847 is an apocalyptic number.

89020847 is a deficient number, since it is larger than the sum of its proper divisors (1).

89020847 is an equidigital number, since it uses as much as digits as its factorization.

89020847 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 89020847 is about 9435.0859561532. The cubic root of 89020847 is about 446.5093669647.

The spelling of 89020847 in words is "eighty-nine million, twenty thousand, eight hundred forty-seven".