70709732 has 24 divisors (see below), whose sum is σ = 131636736. Its totient is φ = 33118848.

The previous prime is 70709731. The next prime is 70709747. The reversal of 70709732 is 23790707.

It is a junction number, because it is equal to n+sod(n) for n = 70709692 and 70709701.

It is not an unprimeable number, because it can be changed into a prime (70709731) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12833 + ... + 17495.

It is an arithmetic number, because the mean of its divisors is an integer number (5484864).

Almost surely, 2^70709732 is an apocalyptic number.

It is an amenable number.

70709732 is a deficient number, since it is larger than the sum of its proper divisors (60927004).

70709732 is a wasteful number, since it uses less digits than its factorization.

70709732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4907 (or 4905 counting only the distinct ones).

The product of its (nonzero) digits is 18522, while the sum is 35.

The square root of 70709732 is about 8408.9078957972. The cubic root of 70709732 is about 413.5167098800.

The spelling of 70709732 in words is "seventy million, seven hundred nine thousand, seven hundred thirty-two".