80775297 has 6 divisors (see below), whose sum is σ = 116675442. Its totient is φ = 53850192.

The previous prime is 80775293. The next prime is 80775301. The reversal of 80775297 is 79257708.

It is an interprime number because it is at equal distance from previous prime (80775293) and next prime (80775301).

It can be written as a sum of positive squares in only one way, i.e., 47320641 + 33454656 = 6879^2 + 5784^2 .

It is not a de Polignac number, because 80775297 - 2² = 80775293 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80775293) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4487508 + ... + 4487525.

It is an arithmetic number, because the mean of its divisors is an integer number (19445907).

Almost surely, 2^80775297 is an apocalyptic number.

It is an amenable number.

80775297 is a deficient number, since it is larger than the sum of its proper divisors (35900145).

80775297 is a wasteful number, since it uses less digits than its factorization.

80775297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8975039 (or 8975036 counting only the distinct ones).

The product of its (nonzero) digits is 246960, while the sum is 45.

The square root of 80775297 is about 8987.5078303165. The cubic root of 80775297 is about 432.2744044949.

The spelling of 80775297 in words is "eighty million, seven hundred seventy-five thousand, two hundred ninety-seven".