80201987 has 6 divisors (see below), whose sum is σ = 81250932. Its totient is φ = 79155092.

The previous prime is 80201981. The next prime is 80202019. The reversal of 80201987 is 78910208.

It is a happy number.

It is not a de Polignac number, because 80201987 - 2⁸ = 80201731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80201981) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 81098 + ... + 82080.

It is an arithmetic number, because the mean of its divisors is an integer number (13541822).

Almost surely, 2^80201987 is an apocalyptic number.

80201987 is a deficient number, since it is larger than the sum of its proper divisors (1048945).

80201987 is an frugal number, since it uses more digits than its factorization.

80201987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2049 (or 1066 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 35.

The square root of 80201987 is about 8955.5562082988. The cubic root of 80201987 is about 431.2492730647.

The spelling of 80201987 in words is "eighty million, two hundred one thousand, nine hundred eighty-seven".