870525078 has 16 divisors (see below), whose sum is σ = 1741422000. Its totient is φ = 290113056.

The previous prime is 870525077. The next prime is 870525113.

It is a happy number.

870525078 is nontrivially palindromic in base 10.

870525078 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×870525078² = 1515627822853812168, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (870525077) 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, 21876 + ... + 47112.

It is an arithmetic number, because the mean of its divisors is an integer number (108838875).

Almost surely, 2^870525078 is an apocalyptic number.

870525078 is an abundant number, since it is smaller than the sum of its proper divisors (870896922).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

870525078 is a wasteful number, since it uses less digits than its factorization.

870525078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30991.

The product of its (nonzero) digits is 156800, while the sum is 42.

The square root of 870525078 is about 29504.6619706107. The cubic root of 870525078 is about 954.8322861830.

The spelling of 870525078 in words is "eight hundred seventy million, five hundred twenty-five thousand, seventy-eight".