80783831 has 8 divisors (see below), whose sum is σ = 82225920. Its totient is φ = 79354368.

The previous prime is 80783767. The next prime is 80783837. The reversal of 80783831 is 13838708.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 80783831 - 2⁶ = 80783767 is a prime.

It is a super-2 number, since 2×80783831² = 13052054702073122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80783837) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10250 + ... + 16328.

It is an arithmetic number, because the mean of its divisors is an integer number (10278240).

Almost surely, 2^80783831 is an apocalyptic number.

80783831 is a deficient number, since it is larger than the sum of its proper divisors (1442089).

80783831 is a wasteful number, since it uses less digits than its factorization.

80783831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6313.

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 80783831 is about 8987.9825878781. The cubic root of 80783831 is about 432.2896273827.

The spelling of 80783831 in words is "eighty million, seven hundred eighty-three thousand, eight hundred thirty-one".