80292991 has 2 divisors, whose sum is σ = 80292992. Its totient is φ = 80292990.

The previous prime is 80292983. The next prime is 80293013. The reversal of 80292991 is 19929208.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80292991 - 2³ = 80292983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80292491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40146495 + 40146496.

It is an arithmetic number, because the mean of its divisors is an integer number (40146496).

Almost surely, 2^80292991 is an apocalyptic number.

80292991 is a deficient number, since it is larger than the sum of its proper divisors (1).

80292991 is an equidigital number, since it uses as much as digits as its factorization.

80292991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 40.

The square root of 80292991 is about 8960.6356359357. The cubic root of 80292991 is about 431.4123221192.

The spelling of 80292991 in words is "eighty million, two hundred ninety-two thousand, nine hundred ninety-one".