70386645 has 16 divisors (see below), whose sum is σ = 128707200. Its totient is φ = 32176704.

The previous prime is 70386637. The next prime is 70386661. The reversal of 70386645 is 54668307.

It is not a de Polignac number, because 70386645 - 2³ = 70386637 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 335070 + ... + 335279.

It is an arithmetic number, because the mean of its divisors is an integer number (8044200).

Almost surely, 2^70386645 is an apocalyptic number.

It is an amenable number.

70386645 is a deficient number, since it is larger than the sum of its proper divisors (58320555).

70386645 is a wasteful number, since it uses less digits than its factorization.

70386645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670364.

The product of its (nonzero) digits is 120960, while the sum is 39.

The square root of 70386645 is about 8389.6749043095. The cubic root of 70386645 is about 412.8859344917.

The spelling of 70386645 in words is "seventy million, three hundred eighty-six thousand, six hundred forty-five".