70025643 has 12 divisors (see below), whose sum is σ = 101233600. Its totient is φ = 46644336.

The previous prime is 70025597. The next prime is 70025677. The reversal of 70025643 is 34652007.

It is a happy number.

It is not a de Polignac number, because 70025643 - 2²¹ = 67928491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70025143) 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 11 ways as a sum of consecutive naturals, for example, 11430 + ... + 16452.

Almost surely, 2^70025643 is an apocalyptic number.

70025643 is a deficient number, since it is larger than the sum of its proper divisors (31207957).

70025643 is a wasteful number, since it uses less digits than its factorization.

70025643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6578 (or 6575 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 70025643 is about 8368.1325873817. The cubic root of 70025643 is about 412.1788486555.

The spelling of 70025643 in words is "seventy million, twenty-five thousand, six hundred forty-three".