80172862 has 32 divisors (see below), whose sum is σ = 150382080. Its totient is φ = 31142880.

The previous prime is 80172857. The next prime is 80172863. The reversal of 80172862 is 26827108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80172863) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74464 + ... + 75532.

It is an arithmetic number, because the mean of its divisors is an integer number (4699440).

Almost surely, 2^80172862 is an apocalyptic number.

80172862 is a deficient number, since it is larger than the sum of its proper divisors (70209218).

80172862 is a wasteful number, since it uses less digits than its factorization.

80172862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1576.

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 80172862 is about 8953.9299751562. The cubic root of 80172862 is about 431.1970646500.

The spelling of 80172862 in words is "eighty million, one hundred seventy-two thousand, eight hundred sixty-two".