87320901 has 8 divisors (see below), whose sum is σ = 116471520. Its totient is φ = 58192112.

The previous prime is 87320879. The next prime is 87320911. The reversal of 87320901 is 10902378.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 87320901 - 2⁵ = 87320869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87320911) 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, 10795 + ... + 17063.

It is an arithmetic number, because the mean of its divisors is an integer number (14558940).

Almost surely, 2^87320901 is an apocalyptic number.

It is an amenable number.

87320901 is a deficient number, since it is larger than the sum of its proper divisors (29150619).

87320901 is a wasteful number, since it uses less digits than its factorization.

87320901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10915.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 87320901 is about 9344.5653189434. The cubic root of 87320901 is about 443.6488935557.

The spelling of 87320901 in words is "eighty-seven million, three hundred twenty thousand, nine hundred one".