99994623 has 16 divisors (see below), whose sum is σ = 140230656. Its totient is φ = 63292320.

The previous prime is 99994621. The next prime is 99994633. The reversal of 99994623 is 32649999.

It is not a de Polignac number, because 99994623 - 2¹ = 99994621 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99994621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5215 + ... + 15072.

It is an arithmetic number, because the mean of its divisors is an integer number (8764416).

Almost surely, 2^99994623 is an apocalyptic number.

99994623 is a gapful number since it is divisible by the number (93) formed by its first and last digit.

99994623 is a deficient number, since it is larger than the sum of its proper divisors (40236033).

99994623 is a wasteful number, since it uses less digits than its factorization.

99994623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20374.

The product of its digits is 944784, while the sum is 51.

The square root of 99994623 is about 9999.7311463859. The cubic root of 99994623 is about 464.1505639378.

The spelling of 99994623 in words is "ninety-nine million, nine hundred ninety-four thousand, six hundred twenty-three".