99680739 has 8 divisors (see below), whose sum is σ = 133176000. Its totient is φ = 66319656.

The previous prime is 99680671. The next prime is 99680753. The reversal of 99680739 is 93708699.

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

It is not a de Polignac number, because 99680739 - 2¹⁹ = 99156451 is a prime.

It is a super-2 number, since 2×99680739² = 19872499455172242, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 99680691 and 99680700.

It is not an unprimeable number, because it can be changed into a prime (99680239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31797 + ... + 34790.

It is an arithmetic number, because the mean of its divisors is an integer number (16647000).

Almost surely, 2^99680739 is an apocalyptic number.

99680739 is a deficient number, since it is larger than the sum of its proper divisors (33495261).

99680739 is a wasteful number, since it uses less digits than its factorization.

99680739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67089.

The product of its (nonzero) digits is 734832, while the sum is 51.

The square root of 99680739 is about 9984.0241886726. The cubic root of 99680739 is about 463.6643973228.

The spelling of 99680739 in words is "ninety-nine million, six hundred eighty thousand, seven hundred thirty-nine".