89774819 has 8 divisors (see below), whose sum is σ = 94556160. Its totient is φ = 85066696.

The previous prime is 89774809. The next prime is 89774827. The reversal of 89774819 is 91847798.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-89774819 is a prime.

It is a super-2 number, since 2×89774819² = 16119036252965522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89774809) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15779 + ... + 20700.

It is an arithmetic number, because the mean of its divisors is an integer number (11819520).

Almost surely, 2^89774819 is an apocalyptic number.

89774819 is a deficient number, since it is larger than the sum of its proper divisors (4781341).

89774819 is a wasteful number, since it uses less digits than its factorization.

89774819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36609.

The product of its digits is 1016064, while the sum is 53.

The square root of 89774819 is about 9474.9574669230. The cubic root of 89774819 is about 447.7664116965.

The spelling of 89774819 in words is "eighty-nine million, seven hundred seventy-four thousand, eight hundred nineteen".