80380815 has 16 divisors (see below), whose sum is σ = 128988288. Its totient is φ = 42743456.

The previous prime is 80380801. The next prime is 80380819. The reversal of 80380815 is 51808308.

It is a cyclic number.

It is not a de Polignac number, because 80380815 - 2²⁵ = 46826383 is a prime.

It is a super-2 number, since 2×80380815² = 12922150840128450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80380819) 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 15 ways as a sum of consecutive naturals, for example, 2517 + ... + 12926.

It is an arithmetic number, because the mean of its divisors is an integer number (8061768).

Almost surely, 2^80380815 is an apocalyptic number.

80380815 is a deficient number, since it is larger than the sum of its proper divisors (48607473).

80380815 is a wasteful number, since it uses less digits than its factorization.

80380815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15798.

The product of its (nonzero) digits is 7680, while the sum is 33.

The square root of 80380815 is about 8965.5348418262. The cubic root of 80380815 is about 431.5695568902.

It can be divided in two parts, 803 and 80815, that added together give a palindrome (81618).

The spelling of 80380815 in words is "eighty million, three hundred eighty thousand, eight hundred fifteen".