80428347 has 24 divisors (see below), whose sum is σ = 119687568. Its totient is φ = 52012800.

The previous prime is 80428301. The next prime is 80428351. The reversal of 80428347 is 74382408.

It is not a de Polignac number, because 80428347 - 2⁸ = 80428091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80428357) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 77343 + ... + 78375.

It is an arithmetic number, because the mean of its divisors is an integer number (4986982).

Almost surely, 2^80428347 is an apocalyptic number.

80428347 is a deficient number, since it is larger than the sum of its proper divisors (39259221).

80428347 is a wasteful number, since it uses less digits than its factorization.

80428347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1291 (or 1288 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 36.

The square root of 80428347 is about 8968.1852679346. The cubic root of 80428347 is about 431.6546075418.

The spelling of 80428347 in words is "eighty million, four hundred twenty-eight thousand, three hundred forty-seven".