70702405 has 24 divisors (see below), whose sum is σ = 91134792. Its totient is φ = 52641792.

The previous prime is 70702397. The next prime is 70702417. The reversal of 70702405 is 50420707.

It can be written as a sum of positive squares in 12 ways, for example, as 30481441 + 40220964 = 5521^2 + 6342^2 .

It is not a de Polignac number, because 70702405 - 2³ = 70702397 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 70702405.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 163069 + ... + 163501.

It is an arithmetic number, because the mean of its divisors is an integer number (3797283).

Almost surely, 2^70702405 is an apocalyptic number.

It is an amenable number.

70702405 is a deficient number, since it is larger than the sum of its proper divisors (20432387).

70702405 is a wasteful number, since it uses less digits than its factorization.

70702405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 585 (or 568 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 25.

The square root of 70702405 is about 8408.4722155692. The cubic root of 70702405 is about 413.5024264072.

The spelling of 70702405 in words is "seventy million, seven hundred two thousand, four hundred five".