80387890 has 16 divisors (see below), whose sum is σ = 157852800. Its totient is φ = 29231920.

The previous prime is 80387887. The next prime is 80387899. The reversal of 80387890 is 9878308.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (80387899) 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, 365290 + ... + 365509.

It is an arithmetic number, because the mean of its divisors is an integer number (9865800).

Almost surely, 2^80387890 is an apocalyptic number.

80387890 is a deficient number, since it is larger than the sum of its proper divisors (77464910).

80387890 is a wasteful number, since it uses less digits than its factorization.

80387890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 730817.

The product of its (nonzero) digits is 96768, while the sum is 43.

The square root of 80387890 is about 8965.9293996774. The cubic root of 80387890 is about 431.5822185559.

The spelling of 80387890 in words is "eighty million, three hundred eighty-seven thousand, eight hundred ninety".