70172744 has 8 divisors (see below), whose sum is σ = 131573910. Its totient is φ = 35086368.

The previous prime is 70172741. The next prime is 70172749. The reversal of 70172744 is 44727107.

It can be written as a sum of positive squares in only one way, i.e., 67732900 + 2439844 = 8230^2 + 1562^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 70172744.

It is not an unprimeable number, because it can be changed into a prime (70172741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4385789 + ... + 4385804.

Almost surely, 2^70172744 is an apocalyptic number.

It is an amenable number.

70172744 is a deficient number, since it is larger than the sum of its proper divisors (61401166).

70172744 is a wasteful number, since it uses less digits than its factorization.

70172744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8771599 (or 8771595 counting only the distinct ones).

The product of its (nonzero) digits is 10976, while the sum is 32.

The square root of 70172744 is about 8376.9173327663. The cubic root of 70172744 is about 412.4672644974.

The spelling of 70172744 in words is "seventy million, one hundred seventy-two thousand, seven hundred forty-four".