80647677 has 32 divisors (see below), whose sum is σ = 138015360. Its totient is φ = 45999360.

The previous prime is 80647657. The next prime is 80647681. The reversal of 80647677 is 77674608.

It is not a de Polignac number, because 80647677 - 2⁸ = 80647421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80647657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2938 + ... + 13035.

It is an arithmetic number, because the mean of its divisors is an integer number (4312980).

Almost surely, 2^80647677 is an apocalyptic number.

It is an amenable number.

80647677 is a deficient number, since it is larger than the sum of its proper divisors (57367683).

80647677 is a wasteful number, since it uses less digits than its factorization.

80647677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16010 (or 16004 counting only the distinct ones).

The product of its (nonzero) digits is 395136, while the sum is 45.

The square root of 80647677 is about 8980.4051690333. The cubic root of 80647677 is about 432.0466288403.

The spelling of 80647677 in words is "eighty million, six hundred forty-seven thousand, six hundred seventy-seven".