80650830 has 64 divisors (see below), whose sum is σ = 209599488. Its totient is φ = 19743360.

The previous prime is 80650807. The next prime is 80650831. The reversal of 80650830 is 3805608.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80650831) 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 31 ways as a sum of consecutive naturals, for example, 88075 + ... + 88985.

It is an arithmetic number, because the mean of its divisors is an integer number (3274992).

Almost surely, 2^80650830 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80650830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104799744).

80650830 is an abundant number, since it is smaller than the sum of its proper divisors (128948658).

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

80650830 is a wasteful number, since it uses less digits than its factorization.

80650830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1161.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 80650830 is about 8980.5807161898. The cubic root of 80650830 is about 432.0522591958.

The spelling of 80650830 in words is "eighty million, six hundred fifty thousand, eight hundred thirty".