99950591 has 8 divisors (see below), whose sum is σ = 108415440. Its totient is φ = 91596672.

The previous prime is 99950581. The next prime is 99950593. The reversal of 99950591 is 19505999.

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 99950591 - 2¹⁴ = 99934207 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 (99950593) 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, 25850 + ... + 29463.

It is an arithmetic number, because the mean of its divisors is an integer number (13551930).

Almost surely, 2^99950591 is an apocalyptic number.

99950591 is a deficient number, since it is larger than the sum of its proper divisors (8464849).

99950591 is a wasteful number, since it uses less digits than its factorization.

99950591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55465.

The product of its (nonzero) digits is 164025, while the sum is 47.

The square root of 99950591 is about 9997.5292447684. The cubic root of 99950591 is about 464.0824253466.

The spelling of 99950591 in words is "ninety-nine million, nine hundred fifty thousand, five hundred ninety-one".