80919000 has 256 divisors, whose sum is σ = 291657600. Its totient is φ = 20995200.

The previous prime is 80918987. The next prime is 80919011. The reversal of 80919000 is 91908.

It is a super-2 number, since 2×80919000² = 13095769122000000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2186982 + ... + 2187018.

Almost surely, 2^80919000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80919000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145828800).

80919000 is an abundant number, since it is smaller than the sum of its proper divisors (210738600).

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

80919000 is an equidigital number, since it uses as much as digits as its factorization.

80919000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79 (or 47 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 27.

The square root of 80919000 is about 8995.4988744371. The cubic root of 80919000 is about 432.5305980335.

The spelling of 80919000 in words is "eighty million, nine hundred nineteen thousand".