894172087 has 4 divisors (see below), whose sum is σ = 894936856. Its totient is φ = 893407320.

The previous prime is 894172079. The next prime is 894172121. The reversal of 894172087 is 780271498.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 894172087 - 2³ = 894172079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (894172187) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 380628 + ... + 382969.

It is an arithmetic number, because the mean of its divisors is an integer number (223734214).

Almost surely, 2^894172087 is an apocalyptic number.

894172087 is a deficient number, since it is larger than the sum of its proper divisors (764769).

894172087 is a wasteful number, since it uses less digits than its factorization.

894172087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 764768.

The product of its (nonzero) digits is 225792, while the sum is 46.

The square root of 894172087 is about 29902.7103621060. The cubic root of 894172087 is about 963.4008744711.

The spelling of 894172087 in words is "eight hundred ninety-four million, one hundred seventy-two thousand, eighty-seven".