80998858 has 16 divisors (see below), whose sum is σ = 125136000. Its totient is φ = 39304512.

The previous prime is 80998849. The next prime is 80998867. The reversal of 80998858 is 85889908.

It is an interprime number because it is at equal distance from previous prime (80998849) and next prime (80998867).

It is a junction number, because it is equal to n+sod(n) for n = 80998799 and 80998808.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4978 + ... + 13666.

It is an arithmetic number, because the mean of its divisors is an integer number (7821000).

Almost surely, 2^80998858 is an apocalyptic number.

80998858 is a deficient number, since it is larger than the sum of its proper divisors (44137142).

80998858 is a wasteful number, since it uses less digits than its factorization.

80998858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8829.

The product of its (nonzero) digits is 1658880, while the sum is 55.

The square root of 80998858 is about 8999.9365553319. The cubic root of 80998858 is about 432.6728376888.

The spelling of 80998858 in words is "eighty million, nine hundred ninety-eight thousand, eight hundred fifty-eight".