89943799 has 4 divisors (see below), whose sum is σ = 98120520. Its totient is φ = 81767080.

The previous prime is 89943793. The next prime is 89943817. The reversal of 89943799 is 99734998.

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 89943799 - 2⁵ = 89943767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89943793) 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, 4088344 + ... + 4088365.

It is an arithmetic number, because the mean of its divisors is an integer number (24530130).

Almost surely, 2^89943799 is an apocalyptic number.

89943799 is a deficient number, since it is larger than the sum of its proper divisors (8176721).

89943799 is a wasteful number, since it uses less digits than its factorization.

89943799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8176720.

The product of its digits is 4408992, while the sum is 58.

The square root of 89943799 is about 9483.8704651635. The cubic root of 89943799 is about 448.0471739626.

The spelling of 89943799 in words is "eighty-nine million, nine hundred forty-three thousand, seven hundred ninety-nine".