70073856 has 160 divisors (see below), whose sum is σ = 214584480. Its totient is φ = 22560768.

The previous prime is 70073849. The next prime is 70073891. The reversal of 70073856 is 65837007.

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 70073856.

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, 511420 + ... + 511556.

It is an arithmetic number, because the mean of its divisors is an integer number (1341153).

Almost surely, 2^70073856 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70073856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107292240).

70073856 is an abundant number, since it is smaller than the sum of its proper divisors (144510624).

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

70073856 is a wasteful number, since it uses less digits than its factorization.

70073856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201 (or 179 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 70073856 is about 8371.0128419445. The cubic root of 70073856 is about 412.2734226762.

The spelling of 70073856 in words is "seventy million, seventy-three thousand, eight hundred fifty-six".