80388657 has 12 divisors (see below), whose sum is σ = 121165824. Its totient is φ = 51262200.

The previous prime is 80388643. The next prime is 80388661. The reversal of 80388657 is 75688308.

It is not a de Polignac number, because 80388657 - 2¹⁴ = 80372273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80388617) 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 11 ways as a sum of consecutive naturals, for example, 193969 + ... + 194382.

It is an arithmetic number, because the mean of its divisors is an integer number (10097152).

Almost surely, 2^80388657 is an apocalyptic number.

It is an amenable number.

80388657 is a deficient number, since it is larger than the sum of its proper divisors (40777167).

80388657 is a wasteful number, since it uses less digits than its factorization.

80388657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388380 (or 388377 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The square root of 80388657 is about 8965.9721726091. The cubic root of 80388657 is about 431.5835911611.

The spelling of 80388657 in words is "eighty million, three hundred eighty-eight thousand, six hundred fifty-seven".