70909448 has 16 divisors (see below), whose sum is σ = 140776380. Its totient is φ = 33369088.

The previous prime is 70909439. The next prime is 70909453. The reversal of 70909448 is 84490907.

It can be written as a sum of positive squares in 2 ways, for example, as 70593604 + 315844 = 8402^2 + 562^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 260561 + ... + 260832.

Almost surely, 2^70909448 is an apocalyptic number.

It is an amenable number.

70909448 is a deficient number, since it is larger than the sum of its proper divisors (69866932).

70909448 is a wasteful number, since it uses less digits than its factorization.

70909448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521416 (or 521412 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 70909448 is about 8420.7747862058. The cubic root of 70909448 is about 413.9056628075.

The spelling of 70909448 in words is "seventy million, nine hundred nine thousand, four hundred forty-eight".