80220629 has 4 divisors (see below), whose sum is σ = 81236160. Its totient is φ = 79205100.

The previous prime is 80220617. The next prime is 80220631. The reversal of 80220629 is 92602208.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80220629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80220659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 507647 + ... + 507804.

It is an arithmetic number, because the mean of its divisors is an integer number (20309040).

Almost surely, 2^80220629 is an apocalyptic number.

It is an amenable number.

80220629 is a deficient number, since it is larger than the sum of its proper divisors (1015531).

80220629 is a wasteful number, since it uses less digits than its factorization.

80220629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1015530.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 80220629 is about 8956.5969542009. The cubic root of 80220629 is about 431.2826834013.

The spelling of 80220629 in words is "eighty million, two hundred twenty thousand, six hundred twenty-nine".