70447929 has 8 divisors (see below), whose sum is σ = 94762272. Its totient is φ = 46549440.

The previous prime is 70447901. The next prime is 70447933. The reversal of 70447929 is 92974407.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 70447929 - 2⁸ = 70447673 is a prime.

It is not an unprimeable number, because it can be changed into a prime (70447939) 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, 103567 + ... + 104244.

It is an arithmetic number, because the mean of its divisors is an integer number (11845284).

Almost surely, 2^70447929 is an apocalyptic number.

It is an amenable number.

70447929 is a deficient number, since it is larger than the sum of its proper divisors (24314343).

70447929 is a wasteful number, since it uses less digits than its factorization.

70447929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207927.

The product of its (nonzero) digits is 127008, while the sum is 42.

The square root of 70447929 is about 8393.3264561793. The cubic root of 70447929 is about 413.0057297620.

The spelling of 70447929 in words is "seventy million, four hundred forty-seven thousand, nine hundred twenty-nine".