80572838 has 4 divisors (see below), whose sum is σ = 120859260. Its totient is φ = 40286418.

The previous prime is 80572837. The next prime is 80572853. The reversal of 80572838 is 83827508.

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

It is a junction number, because it is equal to n+sod(n) for n = 80572795 and 80572804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80572837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20143208 + ... + 20143211.

It is an arithmetic number, because the mean of its divisors is an integer number (30214815).

Almost surely, 2^80572838 is an apocalyptic number.

80572838 is a deficient number, since it is larger than the sum of its proper divisors (40286422).

80572838 is a wasteful number, since it uses less digits than its factorization.

80572838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40286421.

The product of its (nonzero) digits is 107520, while the sum is 41.

The square root of 80572838 is about 8976.2374077338. The cubic root of 80572838 is about 431.9129447066.

The spelling of 80572838 in words is "eighty million, five hundred seventy-two thousand, eight hundred thirty-eight".