80774501 has 2 divisors, whose sum is σ = 80774502. Its totient is φ = 80774500.

The previous prime is 80774471. The next prime is 80774537. The reversal of 80774501 is 10547708.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63218401 + 17556100 = 7951^2 + 4190^2 .

It is a cyclic number.

It is not a de Polignac number, because 80774501 - 2²² = 76580197 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80774801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40387250 + 40387251.

It is an arithmetic number, because the mean of its divisors is an integer number (40387251).

Almost surely, 2^80774501 is an apocalyptic number.

It is an amenable number.

80774501 is a deficient number, since it is larger than the sum of its proper divisors (1).

80774501 is an equidigital number, since it uses as much as digits as its factorization.

80774501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7840, while the sum is 32.

The square root of 80774501 is about 8987.4635465186. The cubic root of 80774501 is about 432.2729845411.

The spelling of 80774501 in words is "eighty million, seven hundred seventy-four thousand, five hundred one".