99983747 has 4 divisors (see below), whose sum is σ = 100058256. Its totient is φ = 99909240.

The previous prime is 99983717. The next prime is 99983753. The reversal of 99983747 is 74738999.

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 99983747 - 2⁶ = 99983683 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 99983692 and 99983701.

It is not an unprimeable number, because it can be changed into a prime (99983717) 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, 35204 + ... + 37937.

It is an arithmetic number, because the mean of its divisors is an integer number (25014564).

Almost surely, 2^99983747 is an apocalyptic number.

99983747 is a deficient number, since it is larger than the sum of its proper divisors (74509).

99983747 is a wasteful number, since it uses less digits than its factorization.

99983747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74508.

The product of its digits is 3429216, while the sum is 56.

The square root of 99983747 is about 9999.1873169773. The cubic root of 99983747 is about 464.1337354177.

The spelling of 99983747 in words is "ninety-nine million, nine hundred eighty-three thousand, seven hundred forty-seven".