870138802 has 8 divisors (see below), whose sum is σ = 1405608876. Its totient is φ = 401602512.

The previous prime is 870138793. The next prime is 870138803. The reversal of 870138802 is 208831078.

It can be written as a sum of positive squares in 2 ways, for example, as 692689761 + 177449041 = 26319^2 + 13321^2 .

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

It is not an unprimeable number, because it can be changed into a prime (870138803) 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 3 ways as a sum of consecutive naturals, for example, 16733413 + ... + 16733464.

Almost surely, 2^870138802 is an apocalyptic number.

870138802 is a deficient number, since it is larger than the sum of its proper divisors (535470074).

870138802 is a wasteful number, since it uses less digits than its factorization.

870138802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33466892.

The product of its (nonzero) digits is 21504, while the sum is 37.

The square root of 870138802 is about 29498.1152279260. The cubic root of 870138802 is about 954.6910368106.

The spelling of 870138802 in words is "eight hundred seventy million, one hundred thirty-eight thousand, eight hundred two".