89820967 has 4 divisors (see below), whose sum is σ = 89856856. Its totient is φ = 89785080.

The previous prime is 89820953. The next prime is 89820971. The reversal of 89820967 is 76902898.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 89820967 - 2¹⁵ = 89788199 is a prime.

It is a super-2 number, since 2×89820967² = 16135612225630178, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 89820967.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89820977) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13884 + ... + 19297.

It is an arithmetic number, because the mean of its divisors is an integer number (22464214).

Almost surely, 2^89820967 is an apocalyptic number.

89820967 is a deficient number, since it is larger than the sum of its proper divisors (35889).

89820967 is a wasteful number, since it uses less digits than its factorization.

89820967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35888.

The product of its (nonzero) digits is 435456, while the sum is 49.

The square root of 89820967 is about 9477.3924156384. The cubic root of 89820967 is about 447.8431220888.

The spelling of 89820967 in words is "eighty-nine million, eight hundred twenty thousand, nine hundred sixty-seven".