99980711 has 4 divisors (see below), whose sum is σ = 100088352. Its totient is φ = 99873072.

The previous prime is 99980707. The next prime is 99980759. The reversal of 99980711 is 11708999.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11708999 = 229 ⋅51131.

It is a cyclic number.

It is not a de Polignac number, because 99980711 - 2² = 99980707 is a prime.

It is a super-2 number, since 2×99980711² = 19992285144131042, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99980311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52415 + ... + 54288.

It is an arithmetic number, because the mean of its divisors is an integer number (25022088).

Almost surely, 2^99980711 is an apocalyptic number.

99980711 is a deficient number, since it is larger than the sum of its proper divisors (107641).

99980711 is a wasteful number, since it uses less digits than its factorization.

99980711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107640.

The product of its (nonzero) digits is 40824, while the sum is 44.

The square root of 99980711 is about 9999.0355034873. The cubic root of 99980711 is about 464.1290375732.

The spelling of 99980711 in words is "ninety-nine million, nine hundred eighty thousand, seven hundred eleven".