70563944 has 32 divisors (see below), whose sum is σ = 146089440. Its totient is φ = 31684800.

The previous prime is 70563943. The next prime is 70563947. The reversal of 70563944 is 44936507.

It is a junction number, because it is equal to n+sod(n) for n = 70563898 and 70563907.

It is not an unprimeable number, because it can be changed into a prime (70563943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2474 + ... + 12134.

It is an arithmetic number, because the mean of its divisors is an integer number (4565295).

Almost surely, 2^70563944 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 70563944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73044720).

70563944 is an abundant number, since it is smaller than the sum of its proper divisors (75525496).

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

70563944 is a wasteful number, since it uses less digits than its factorization.

70563944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9761 (or 9757 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 38.

The square root of 70563944 is about 8400.2347586243. The cubic root of 70563944 is about 413.2323206738.

The spelling of 70563944 in words is "seventy million, five hundred sixty-three thousand, nine hundred forty-four".