70871256 has 24 divisors (see below), whose sum is σ = 191943180. Its totient is φ = 23623728.

The previous prime is 70871219. The next prime is 70871261. The reversal of 70871256 is 65217807.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-3 number, since 3×70871256³ (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 70871256.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 492090 + ... + 492233.

Almost surely, 2^70871256 is an apocalyptic number.

It is an amenable number.

70871256 is an abundant number, since it is smaller than the sum of its proper divisors (121071924).

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

70871256 is a wasteful number, since it uses less digits than its factorization.

70871256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 984335 (or 984328 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

The square root of 70871256 is about 8418.5067559514. The cubic root of 70871256 is about 413.8313392656.

The spelling of 70871256 in words is "seventy million, eight hundred seventy-one thousand, two hundred fifty-six".