80831061 has 16 divisors (see below), whose sum is σ = 120669120. Its totient is φ = 53473680.

The previous prime is 80831059. The next prime is 80831063. The reversal of 80831061 is 16013808.

It is an interprime number because it is at equal distance from previous prime (80831059) and next prime (80831063).

It is not a de Polignac number, because 80831061 - 2¹ = 80831059 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80831063) 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, 7890 + ... + 14963.

It is an arithmetic number, because the mean of its divisors is an integer number (7541820).

Almost surely, 2^80831061 is an apocalyptic number.

It is an amenable number.

80831061 is a deficient number, since it is larger than the sum of its proper divisors (39838059).

80831061 is a wasteful number, since it uses less digits than its factorization.

80831061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22993 (or 22987 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 80831061 is about 8990.6096011338. The cubic root of 80831061 is about 432.3738565377.

Adding to 80831061 its reverse (16013808), we get a palindrome (96844869).

The spelling of 80831061 in words is "eighty million, eight hundred thirty-one thousand, sixty-one".