80634123 has 20 divisors (see below), whose sum is σ = 124610640. Its totient is φ = 51900912.

The previous prime is 80634109. The next prime is 80634143. The reversal of 80634123 is 32143608.

It is a happy number.

80634123 is a `hidden beast` number, since 8 + 0 + 634 + 1 + 23 = 666.

It is not a de Polignac number, because 80634123 - 2⁴ = 80634107 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (80634143) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 14815 + ... + 19512.

It is an arithmetic number, because the mean of its divisors is an integer number (6230532).

Almost surely, 2^80634123 is an apocalyptic number.

80634123 is a deficient number, since it is larger than the sum of its proper divisors (43976517).

80634123 is a wasteful number, since it uses less digits than its factorization.

80634123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34368 (or 34359 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 80634123 is about 8979.6504943121. The cubic root of 80634123 is about 432.0224236046.

The spelling of 80634123 in words is "eighty million, six hundred thirty-four thousand, one hundred twenty-three".