70506870 has 32 divisors (see below), whose sum is σ = 193390848. Its totient is φ = 16115808.

The previous prime is 70506869. The next prime is 70506889. The reversal of 70506870 is 7860507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 167664 + ... + 168083.

It is an arithmetic number, because the mean of its divisors is an integer number (6043464).

Almost surely, 2^70506870 is an apocalyptic number.

70506870 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

70506870 is an abundant number, since it is smaller than the sum of its proper divisors (122883978).

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

70506870 is a wasteful number, since it uses less digits than its factorization.

70506870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335764.

The product of its (nonzero) digits is 11760, while the sum is 33.

The square root of 70506870 is about 8396.8369044540. The cubic root of 70506870 is about 413.1208795153.

The spelling of 70506870 in words is "seventy million, five hundred six thousand, eight hundred seventy".