80699541 has 16 divisors (see below), whose sum is σ = 119616000. Its totient is φ = 48058560.

The previous prime is 80699533. The next prime is 80699543. The reversal of 80699541 is 14599608.

It is not a de Polignac number, because 80699541 - 2³ = 80699533 is a prime.

It is a super-2 number, since 2×80699541² = 13024831835221362, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 80699493 and 80699502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80699543) 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 15 ways as a sum of consecutive naturals, for example, 32166 + ... + 34583.

It is an arithmetic number, because the mean of its divisors is an integer number (7476000).

Almost surely, 2^80699541 is an apocalyptic number.

It is an amenable number.

80699541 is a deficient number, since it is larger than the sum of its proper divisors (38916459).

80699541 is a wasteful number, since it uses less digits than its factorization.

80699541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66796.

The product of its (nonzero) digits is 77760, while the sum is 42.

The square root of 80699541 is about 8983.2923252002. The cubic root of 80699541 is about 432.1392244591.

The spelling of 80699541 in words is "eighty million, six hundred ninety-nine thousand, five hundred forty-one".