70945929 has 8 divisors (see below), whose sum is σ = 105105120. Its totient is φ = 47297268.

The previous prime is 70945891. The next prime is 70945951. The reversal of 70945929 is 92954907.

It is not a de Polignac number, because 70945929 - 2⁹ = 70945417 is a prime.

It is not an unprimeable number, because it can be changed into a prime (70945529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1313787 + ... + 1313840.

It is an arithmetic number, because the mean of its divisors is an integer number (13138140).

Almost surely, 2^70945929 is an apocalyptic number.

It is an amenable number.

70945929 is a deficient number, since it is larger than the sum of its proper divisors (34159191).

70945929 is a wasteful number, since it uses less digits than its factorization.

70945929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2627636 (or 2627630 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 45.

The square root of 70945929 is about 8422.9406385181. The cubic root of 70945929 is about 413.9766317413.

The spelling of 70945929 in words is "seventy million, nine hundred forty-five thousand, nine hundred twenty-nine".