87201954 has 32 divisors (see below), whose sum is σ = 221466240. Its totient is φ = 24914736.

The previous prime is 87201953. The next prime is 87201971. The reversal of 87201954 is 45910278.

It is not an unprimeable number, because it can be changed into a prime (87201953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114969 + ... + 115724.

It is an arithmetic number, because the mean of its divisors is an integer number (6920820).

Almost surely, 2^87201954 is an apocalyptic number.

87201954 is an abundant number, since it is smaller than the sum of its proper divisors (134264286).

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

87201954 is a wasteful number, since it uses less digits than its factorization.

87201954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230711 (or 230705 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 87201954 is about 9338.1986485617. The cubic root of 87201954 is about 443.4473584380.

The spelling of 87201954 in words is "eighty-seven million, two hundred one thousand, nine hundred fifty-four".