70429447 has 8 divisors (see below), whose sum is σ = 80876160. Its totient is φ = 60656760.

The previous prime is 70429439. The next prime is 70429459. The reversal of 70429447 is 74492407.

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

It is a cyclic number.

It is not a de Polignac number, because 70429447 - 2³ = 70429439 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70429477) 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, 168283 + ... + 168700.

It is an arithmetic number, because the mean of its divisors is an integer number (10109520).

Almost surely, 2^70429447 is an apocalyptic number.

70429447 is a deficient number, since it is larger than the sum of its proper divisors (10446713).

70429447 is a wasteful number, since it uses less digits than its factorization.

70429447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337013.

The product of its (nonzero) digits is 56448, while the sum is 37.

The square root of 70429447 is about 8392.2253902049. The cubic root of 70429447 is about 412.9696092797.

It can be divided in two parts, 70429 and 447, that added together give a triangular number (70876 = T₃₇₆).

The spelling of 70429447 in words is "seventy million, four hundred twenty-nine thousand, four hundred forty-seven".