70440663 has 8 divisors (see below), whose sum is σ = 93970800. Its totient is φ = 46935488.

The previous prime is 70440661. The next prime is 70440703. The reversal of 70440663 is 36604407.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 70440663 - 2¹ = 70440661 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 70440663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70440661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1843 + ... + 12011.

It is an arithmetic number, because the mean of its divisors is an integer number (11746350).

Almost surely, 2^70440663 is an apocalyptic number.

70440663 is a deficient number, since it is larger than the sum of its proper divisors (23530137).

70440663 is a wasteful number, since it uses less digits than its factorization.

70440663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12481.

The product of its (nonzero) digits is 12096, while the sum is 30.

The square root of 70440663 is about 8392.8936011366. The cubic root of 70440663 is about 412.9915301356.

The spelling of 70440663 in words is "seventy million, four hundred forty thousand, six hundred sixty-three".