70944147 has 8 divisors (see below), whose sum is σ = 105102480. Its totient is φ = 47296080.

The previous prime is 70944143. The next prime is 70944149. The reversal of 70944147 is 74144907.

It is not a de Polignac number, because 70944147 - 2² = 70944143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (70944143) 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, 1313754 + ... + 1313807.

It is an arithmetic number, because the mean of its divisors is an integer number (13137810).

Almost surely, 2^70944147 is an apocalyptic number.

70944147 is a deficient number, since it is larger than the sum of its proper divisors (34158333).

70944147 is a wasteful number, since it uses less digits than its factorization.

70944147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2627570 (or 2627564 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 70944147 is about 8422.8348553204. The cubic root of 70944147 is about 413.9731656625.

The spelling of 70944147 in words is "seventy million, nine hundred forty-four thousand, one hundred forty-seven".