80684698 has 4 divisors (see below), whose sum is σ = 121027050. Its totient is φ = 40342348.

The previous prime is 80684689. The next prime is 80684707. The reversal of 80684698 is 89648608.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (80684689) and next prime (80684707).

It can be written as a sum of positive squares in only one way, i.e., 66373609 + 14311089 = 8147^2 + 3783^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20171173 + ... + 20171176.

Almost surely, 2^80684698 is an apocalyptic number.

80684698 is a deficient number, since it is larger than the sum of its proper divisors (40342352).

80684698 is a wasteful number, since it uses less digits than its factorization.

80684698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40342351.

The product of its (nonzero) digits is 663552, while the sum is 49.

The square root of 80684698 is about 8982.4661424355. The cubic root of 80684698 is about 432.1127284975.

The spelling of 80684698 in words is "eighty million, six hundred eighty-four thousand, six hundred ninety-eight".