870437087 has 4 divisors (see below), whose sum is σ = 937393800. Its totient is φ = 803480376.

The previous prime is 870437053. The next prime is 870437107. The reversal of 870437087 is 780734078.

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 870437087 - 2¹² = 870432991 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 (870437387) 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, 33478337 + ... + 33478362.

It is an arithmetic number, because the mean of its divisors is an integer number (234348450).

Almost surely, 2^870437087 is an apocalyptic number.

870437087 is a deficient number, since it is larger than the sum of its proper divisors (66956713).

870437087 is a wasteful number, since it uses less digits than its factorization.

870437087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66956712.

The product of its (nonzero) digits is 263424, while the sum is 44.

The square root of 870437087 is about 29503.1707956958. The cubic root of 870437087 is about 954.8001142289.

The spelling of 870437087 in words is "eight hundred seventy million, four hundred thirty-seven thousand, eighty-seven".