80071892 has 6 divisors (see below), whose sum is σ = 140125818. Its totient is φ = 40035944.

The previous prime is 80071889. The next prime is 80071907. The reversal of 80071892 is 29817008.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 74891716 + 5180176 = 8654^2 + 2276^2 .

It is a congruent number.

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, 10008983 + ... + 10008990.

It is an arithmetic number, because the mean of its divisors is an integer number (23354303).

Almost surely, 2^80071892 is an apocalyptic number.

It is an amenable number.

80071892 is a deficient number, since it is larger than the sum of its proper divisors (60053926).

80071892 is a wasteful number, since it uses less digits than its factorization.

80071892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20017977 (or 20017975 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 35.

The square root of 80071892 is about 8948.2898924878. The cubic root of 80071892 is about 431.0159715444.

The spelling of 80071892 in words is "eighty million, seventy-one thousand, eight hundred ninety-two".