70047645 has 32 divisors (see below), whose sum is σ = 115433472. Its totient is φ = 36251712.

The previous prime is 70047587. The next prime is 70047647. The reversal of 70047645 is 54674007.

It is not a de Polignac number, because 70047645 - 2⁷ = 70047517 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70047647) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 143592 + ... + 144078.

It is an arithmetic number, because the mean of its divisors is an integer number (3607296).

Almost surely, 2^70047645 is an apocalyptic number.

It is an amenable number.

70047645 is a deficient number, since it is larger than the sum of its proper divisors (45385827).

70047645 is a wasteful number, since it uses less digits than its factorization.

70047645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 761.

The product of its (nonzero) digits is 23520, while the sum is 33.

The square root of 70047645 is about 8369.4471143559. The cubic root of 70047645 is about 412.2220128880. Note that the first 3 decimals are identical.

The spelling of 70047645 in words is "seventy million, forty-seven thousand, six hundred forty-five".