70906147 has 6 divisors (see below), whose sum is σ = 76780212. Its totient is φ = 65451672.

The previous prime is 70906139. The next prime is 70906151. The reversal of 70906147 is 74160907.

It is not a de Polignac number, because 70906147 - 2³ = 70906139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70906117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 209613 + ... + 209950.

It is an arithmetic number, because the mean of its divisors is an integer number (12796702).

Almost surely, 2^70906147 is an apocalyptic number.

70906147 is a deficient number, since it is larger than the sum of its proper divisors (5874065).

70906147 is a wasteful number, since it uses less digits than its factorization.

70906147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419589 (or 419576 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 34.

The square root of 70906147 is about 8420.5787805827. The cubic root of 70906147 is about 413.8992399502.

The spelling of 70906147 in words is "seventy million, nine hundred six thousand, one hundred forty-seven".