80638996 has 6 divisors (see below), whose sum is σ = 141118250. Its totient is φ = 40319496.

The previous prime is 80638927. The next prime is 80638997. The reversal of 80638996 is 69983608.

It can be written as a sum of positive squares in only one way, i.e., 44036496 + 36602500 = 6636^2 + 6050^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80638997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10079871 + ... + 10079878.

Almost surely, 2^80638996 is an apocalyptic number.

It is an amenable number.

80638996 is a deficient number, since it is larger than the sum of its proper divisors (60479254).

80638996 is a wasteful number, since it uses less digits than its factorization.

80638996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20159753 (or 20159751 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 49.

The square root of 80638996 is about 8979.9218259404. The cubic root of 80638996 is about 432.0311263009.

The spelling of 80638996 in words is "eighty million, six hundred thirty-eight thousand, nine hundred ninety-six".