70729832 has 16 divisors (see below), whose sum is σ = 132727140. Its totient is φ = 35335936.

The previous prime is 70729819. The next prime is 70729871. The reversal of 70729832 is 23892707.

It can be written as a sum of positive squares in 2 ways, for example, as 57668836 + 13060996 = 7594^2 + 3614^2 .

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9578 + ... + 15270.

Almost surely, 2^70729832 is an apocalyptic number.

It is an amenable number.

70729832 is a deficient number, since it is larger than the sum of its proper divisors (61997308).

70729832 is a wasteful number, since it uses less digits than its factorization.

70729832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7252 (or 7248 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 70729832 is about 8410.1029720212. The cubic root of 70729832 is about 413.5558883551. Note that the first 3 decimals are identical.

The spelling of 70729832 in words is "seventy million, seven hundred twenty-nine thousand, eight hundred thirty-two".