70688052 has 60 divisors (see below), whose sum is σ = 186611040. Its totient is φ = 23331024.

The previous prime is 70688021. The next prime is 70688063. The reversal of 70688052 is 25088607.

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

It is a junction number, because it is equal to n+sod(n) for n = 70687998 and 70688016.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 33649 + ... + 35687.

It is an arithmetic number, because the mean of its divisors is an integer number (3110184).

Almost surely, 2^70688052 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 70688052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93305520).

70688052 is an abundant number, since it is smaller than the sum of its proper divisors (115922988).

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

70688052 is a wasteful number, since it uses less digits than its factorization.

70688052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2162 (or 2151 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 70688052 is about 8407.6186878331. The cubic root of 70688052 is about 413.4744433799.

The spelling of 70688052 in words is "seventy million, six hundred eighty-eight thousand, fifty-two".