80386388 has 6 divisors (see below), whose sum is σ = 140676186. Its totient is φ = 40193192.

The previous prime is 80386381. The next prime is 80386409. The reversal of 80386388 is 88368308.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 78818884 + 1567504 = 8878^2 + 1252^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80386381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10048295 + ... + 10048302.

It is an arithmetic number, because the mean of its divisors is an integer number (23446031).

Almost surely, 2^80386388 is an apocalyptic number.

It is an amenable number.

80386388 is a deficient number, since it is larger than the sum of its proper divisors (60289798).

80386388 is a wasteful number, since it uses less digits than its factorization.

80386388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20096601 (or 20096599 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 44.

The square root of 80386388 is about 8965.8456377522. The cubic root of 80386388 is about 431.5795305867.

The spelling of 80386388 in words is "eighty million, three hundred eighty-six thousand, three hundred eighty-eight".