845620887 has 8 divisors (see below), whose sum is σ = 1131508080. Its totient is φ = 561740480.

The previous prime is 845620873. The next prime is 845620901. The reversal of 845620887 is 788026548.

It is an interprime number because it is at equal distance from previous prime (845620873) and next prime (845620901).

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 845620887 - 2²⁴ = 828843671 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (845620847) 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, 500712 + ... + 502397.

It is an arithmetic number, because the mean of its divisors is an integer number (141438510).

Almost surely, 2^845620887 is an apocalyptic number.

845620887 is a deficient number, since it is larger than the sum of its proper divisors (285887193).

845620887 is a wasteful number, since it uses less digits than its factorization.

845620887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1003393.

The product of its (nonzero) digits is 860160, while the sum is 48.

The square root of 845620887 is about 29079.5613275029. The cubic root of 845620887 is about 945.6386925573.

The spelling of 845620887 in words is "eight hundred forty-five million, six hundred twenty thousand, eight hundred eighty-seven".