80698556 has 6 divisors (see below), whose sum is σ = 141222480. Its totient is φ = 40349276.

The previous prime is 80698531. The next prime is 80698601. The reversal of 80698556 is 65589608.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 80698556.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10087316 + ... + 10087323.

It is an arithmetic number, because the mean of its divisors is an integer number (23537080).

Almost surely, 2^80698556 is an apocalyptic number.

It is an amenable number.

80698556 is a deficient number, since it is larger than the sum of its proper divisors (60523924).

80698556 is a wasteful number, since it uses less digits than its factorization.

80698556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20174643 (or 20174641 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 47.

The square root of 80698556 is about 8983.2375010349. The cubic root of 80698556 is about 432.1374662547.

The spelling of 80698556 in words is "eighty million, six hundred ninety-eight thousand, five hundred fifty-six".