80897530 has 48 divisors (see below), whose sum is σ = 175261320. Its totient is φ = 26775168.

The previous prime is 80897513. The next prime is 80897533. The reversal of 80897530 is 3579808.

It can be written as a sum of positive squares in 4 ways, for example, as 50083929 + 30813601 = 7077^2 + 5551^2 .

It is not an unprimeable number, because it can be changed into a prime (80897533) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11364 + ... + 17056.

Almost surely, 2^80897530 is an apocalyptic number.

80897530 is an abundant number, since it is smaller than the sum of its proper divisors (94363790).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80897530 is a wasteful number, since it uses less digits than its factorization.

80897530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5743 (or 5736 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 80897530 is about 8994.3054206537. The cubic root of 80897530 is about 432.4923406264.

The spelling of 80897530 in words is "eighty million, eight hundred ninety-seven thousand, five hundred thirty".