99943426 has 8 divisors (see below), whose sum is σ = 163543824. Its totient is φ = 45428820.

The previous prime is 99943409. The next prime is 99943433. The reversal of 99943426 is 62434999.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2271420 + ... + 2271463.

It is an arithmetic number, because the mean of its divisors is an integer number (20442978).

Almost surely, 2^99943426 is an apocalyptic number.

99943426 is a deficient number, since it is larger than the sum of its proper divisors (63600398).

99943426 is a wasteful number, since it uses less digits than its factorization.

99943426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4542896.

The product of its digits is 419904, while the sum is 46.

The square root of 99943426 is about 9997.1708998096. The cubic root of 99943426 is about 464.0713357673.

The spelling of 99943426 in words is "ninety-nine million, nine hundred forty-three thousand, four hundred twenty-six".