80869650 has 48 divisors (see below), whose sum is σ = 201174624. Its totient is φ = 21498880.

The previous prime is 80869609. The next prime is 80869651. The reversal of 80869650 is 5696808.

It is a super-2 number, since 2×80869650² = 13079800582245000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (80869651) 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 23 ways as a sum of consecutive naturals, for example, 65842 + ... + 67058.

It is an arithmetic number, because the mean of its divisors is an integer number (4191138).

Almost surely, 2^80869650 is an apocalyptic number.

80869650 is an abundant number, since it is smaller than the sum of its proper divisors (120304974).

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

80869650 is a wasteful number, since it uses less digits than its factorization.

80869650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1675 (or 1670 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 42.

The square root of 80869650 is about 8992.7554175570. The cubic root of 80869650 is about 432.4426511327.

The spelling of 80869650 in words is "eighty million, eight hundred sixty-nine thousand, six hundred fifty".