70533648 has 30 divisors (see below), whose sum is σ = 197396654. Its totient is φ = 23511168.

The previous prime is 70533613. The next prime is 70533721. The reversal of 70533648 is 84633507.

It is a happy number.

70533648 is a `hidden beast` number, since 7 + 0 + 5 + 3 + 3 + 648 = 666.

It can be written as a sum of positive squares in only one way, i.e., 42146064 + 28387584 = 6492^2 + 5328^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 244765 + ... + 245052.

Almost surely, 2^70533648 is an apocalyptic number.

It is an amenable number.

70533648 is an abundant number, since it is smaller than the sum of its proper divisors (126863006).

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

70533648 is a wasteful number, since it uses less digits than its factorization.

70533648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489831 (or 489822 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 70533648 is about 8398.4312820907. The cubic root of 70533648 is about 413.1731730044.

It can be divided in two parts, 7053 and 3648, that added together give a palindrome (10701).

The spelling of 70533648 in words is "seventy million, five hundred thirty-three thousand, six hundred forty-eight".