80823951 has 24 divisors (see below), whose sum is σ = 126222096. Its totient is φ = 49541760.

The previous prime is 80823949. The next prime is 80823971. The reversal of 80823951 is 15932808.

It is not a de Polignac number, because 80823951 - 2¹ = 80823949 is a prime.

It is a super-2 number, since 2×80823951² = 13065022110500802, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80823901) by changing a digit.

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 in 23 ways as a sum of consecutive naturals, for example, 31891 + ... + 34331.

It is an arithmetic number, because the mean of its divisors is an integer number (5259254).

Almost surely, 2^80823951 is an apocalyptic number.

80823951 is a deficient number, since it is larger than the sum of its proper divisors (45398145).

80823951 is a wasteful number, since it uses less digits than its factorization.

80823951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2743 (or 2740 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 80823951 is about 8990.2141798736. The cubic root of 80823951 is about 432.3611787865.

The spelling of 80823951 in words is "eighty million, eight hundred twenty-three thousand, nine hundred fifty-one".