80648402 has 4 divisors (see below), whose sum is σ = 120972606. Its totient is φ = 40324200.

The previous prime is 80648389. The next prime is 80648411. The reversal of 80648402 is 20484608.

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

It can be written as a sum of positive squares in only one way, i.e., 41847961 + 38800441 = 6469^2 + 6229^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20162099 + ... + 20162102.

Almost surely, 2^80648402 is an apocalyptic number.

80648402 is a deficient number, since it is larger than the sum of its proper divisors (40324204).

80648402 is a wasteful number, since it uses less digits than its factorization.

80648402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40324203.

The product of its (nonzero) digits is 12288, while the sum is 32.

The square root of 80648402 is about 8980.4455346046. The cubic root of 80648402 is about 432.0479234958.

The spelling of 80648402 in words is "eighty million, six hundred forty-eight thousand, four hundred two".