80861354 has 24 divisors (see below), whose sum is σ = 142500960. Its totient is φ = 33710256.

The previous prime is 80861351. The next prime is 80861377. The reversal of 80861354 is 45316808.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (80861351) 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 11 ways as a sum of consecutive naturals, for example, 17057 + ... + 21275.

It is an arithmetic number, because the mean of its divisors is an integer number (5937540).

Almost surely, 2^80861354 is an apocalyptic number.

80861354 is a deficient number, since it is larger than the sum of its proper divisors (61639606).

80861354 is a wasteful number, since it uses less digits than its factorization.

80861354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4302 (or 4265 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 80861354 is about 8992.2941455448. The cubic root of 80861354 is about 432.4278632739.

The spelling of 80861354 in words is "eighty million, eight hundred sixty-one thousand, three hundred fifty-four".