99876541 has 4 divisors (see below), whose sum is σ = 99897084. Its totient is φ = 99856000.

The previous prime is 99876529. The next prime is 99876563. The reversal of 99876541 is 14567899.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14567899 = 37 ⋅393727.

It can be written as a sum of positive squares in 2 ways, for example, as 22524516 + 77352025 = 4746^2 + 8795^2 .

It is a 4-Lehmer number, since φ(99876541) divides (99876541-1)⁴.

It is a cyclic number.

It is not a de Polignac number, because 99876541 - 2⁵ = 99876509 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99876941) 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, 1581 + ... + 14221.

It is an arithmetic number, because the mean of its divisors is an integer number (24974271).

Almost surely, 2^99876541 is an apocalyptic number.

It is an amenable number.

99876541 is a deficient number, since it is larger than the sum of its proper divisors (20543).

99876541 is a wasteful number, since it uses less digits than its factorization.

99876541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20542.

The product of its digits is 544320, while the sum is 49.

The square root of 99876541 is about 9993.8251435574. The cubic root of 99876541 is about 463.9677893935.

The spelling of 99876541 in words is "ninety-nine million, eight hundred seventy-six thousand, five hundred forty-one".