89749619 has 8 divisors (see below), whose sum is σ = 93498240. Its totient is φ = 86054400.

The previous prime is 89749607. The next prime is 89749633. The reversal of 89749619 is 91694798.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 89749619 - 2⁴ = 89749603 is a prime.

It is a super-2 number, since 2×89749619² = 16109988221290322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89769619) 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, 9902 + ... + 16659.

It is an arithmetic number, because the mean of its divisors is an integer number (11687280).

Almost surely, 2^89749619 is an apocalyptic number.

89749619 is a deficient number, since it is larger than the sum of its proper divisors (3748621).

89749619 is a wasteful number, since it uses less digits than its factorization.

89749619 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26701.

The product of its digits is 979776, while the sum is 53.

The square root of 89749619 is about 9473.6275523160. The cubic root of 89749619 is about 447.7245114189.

The spelling of 89749619 in words is "eighty-nine million, seven hundred forty-nine thousand, six hundred nineteen".