70673664 has 72 divisors (see below), whose sum is σ = 196322112. Its totient is φ = 22528000.

The previous prime is 70673657. The next prime is 70673671. The reversal of 70673664 is 46637607.

It is an interprime number because it is at equal distance from previous prime (70673657) and next prime (70673671).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15664 + ... + 19664.

It is an arithmetic number, because the mean of its divisors is an integer number (2726696).

Almost surely, 2^70673664 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 70673664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98161056).

70673664 is an abundant number, since it is smaller than the sum of its proper divisors (125648448).

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

70673664 is a wasteful number, since it uses less digits than its factorization.

70673664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4043 (or 4029 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 39.

The square root of 70673664 is about 8406.7629917823. The cubic root of 70673664 is about 413.4463883136.

It can be divided in two parts, 7067 and 3664, that added together give a triangular number (10731 = T₁₄₆).

The spelling of 70673664 in words is "seventy million, six hundred seventy-three thousand, six hundred sixty-four".