70403685 has 32 divisors (see below), whose sum is σ = 125756928. Its totient is φ = 33337920.

The previous prime is 70403659. The next prime is 70403687. The reversal of 70403685 is 58630407.

It is not a de Polignac number, because 70403685 - 2⁵ = 70403653 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70403687) 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 31 ways as a sum of consecutive naturals, for example, 2134 + ... + 12056.

It is an arithmetic number, because the mean of its divisors is an integer number (3929904).

Almost surely, 2^70403685 is an apocalyptic number.

It is an amenable number.

70403685 is a deficient number, since it is larger than the sum of its proper divisors (55353243).

70403685 is a wasteful number, since it uses less digits than its factorization.

70403685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9985.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 70403685 is about 8390.6903768403. The cubic root of 70403685 is about 412.9192505118.

The spelling of 70403685 in words is "seventy million, four hundred three thousand, six hundred eighty-five".