80005890 has 16 divisors (see below), whose sum is σ = 192014208. Its totient is φ = 21334896.

The previous prime is 80005879. The next prime is 80005897. The reversal of 80005890 is 9850008.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 2666863 = 80005890 / (8 + 0 + 0 + 0 + 5 + 8 + 9 + 0).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (80005897) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1333402 + ... + 1333461.

It is an arithmetic number, because the mean of its divisors is an integer number (12000888).

Almost surely, 2^80005890 is an apocalyptic number.

80005890 is an abundant number, since it is smaller than the sum of its proper divisors (112008318).

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

80005890 is a wasteful number, since it uses less digits than its factorization.

80005890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2666873.

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 80005890 is about 8944.6011649486. The cubic root of 80005890 is about 430.8975124305.

Adding to 80005890 its reverse (9850008), we get a palindrome (89855898).

The spelling of 80005890 in words is "eighty million, five thousand, eight hundred ninety".