70665344 has 32 divisors (see below), whose sum is σ = 145640700. Its totient is φ = 34112512.

The previous prime is 70665319. The next prime is 70665347. The reversal of 70665344 is 44356607.

It can be written as a sum of positive squares in 2 ways, for example, as 62599744 + 8065600 = 7912^2 + 2840^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (70665347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5807 + ... + 13230.

Almost surely, 2^70665344 is an apocalyptic number.

It is an amenable number.

70665344 is an abundant number, since it is smaller than the sum of its proper divisors (74975356).

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

70665344 is a wasteful number, since it uses less digits than its factorization.

70665344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19080 (or 19068 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 35.

The square root of 70665344 is about 8406.2681375269. The cubic root of 70665344 is about 413.4301634629.

The spelling of 70665344 in words is "seventy million, six hundred sixty-five thousand, three hundred forty-four".