80519629 has 4 divisors (see below), whose sum is σ = 80543260. Its totient is φ = 80496000.

The previous prime is 80519627. The next prime is 80519639. The reversal of 80519629 is 92691508.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 43917129 + 36602500 = 6627^2 + 6050^2 .

It is a cyclic number.

It is not a de Polignac number, because 80519629 - 2¹ = 80519627 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 80519591 and 80519600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80519627) 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 3 ways as a sum of consecutive naturals, for example, 5622 + ... + 13879.

It is an arithmetic number, because the mean of its divisors is an integer number (20135815).

Almost surely, 2^80519629 is an apocalyptic number.

It is an amenable number.

80519629 is a deficient number, since it is larger than the sum of its proper divisors (23631).

80519629 is a wasteful number, since it uses less digits than its factorization.

80519629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23630.

The product of its (nonzero) digits is 38880, while the sum is 40.

The square root of 80519629 is about 8973.2730371922. The cubic root of 80519629 is about 431.8178476606.

The spelling of 80519629 in words is "eighty million, five hundred nineteen thousand, six hundred twenty-nine".