870672787 has 8 divisors (see below), whose sum is σ = 889297920. Its totient is φ = 852224520.

The previous prime is 870672749. The next prime is 870672811. The reversal of 870672787 is 787276078.

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 870672787 - 2¹⁵ = 870640019 is a prime.

It is a super-2 number, since 2×870672787² = 1516142204044694738, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (870676787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34243 + ... + 53980.

It is an arithmetic number, because the mean of its divisors is an integer number (111162240).

Almost surely, 2^870672787 is an apocalyptic number.

870672787 is a deficient number, since it is larger than the sum of its proper divisors (18625133).

870672787 is a wasteful number, since it uses less digits than its factorization.

870672787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88433.

The product of its (nonzero) digits is 1843968, while the sum is 52.

The square root of 870672787 is about 29507.1650112307. The cubic root of 870672787 is about 954.8862878231.

The spelling of 870672787 in words is "eight hundred seventy million, six hundred seventy-two thousand, seven hundred eighty-seven".