70609005 has 24 divisors (see below), whose sum is σ = 123079320. Its totient is φ = 37445760.

The previous prime is 70608983. The next prime is 70609027. The reversal of 70609005 is 50090607.

It is an interprime number because it is at equal distance from previous prime (70608983) and next prime (70609027).

It can be written as a sum of positive squares in 4 ways, for example, as 149769 + 70459236 = 387^2 + 8394^2 .

It is not a de Polignac number, because 70609005 - 2⁹ = 70608493 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 70609005.

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, 3811 + ... + 12479.

It is an arithmetic number, because the mean of its divisors is an integer number (5128305).

Almost surely, 2^70609005 is an apocalyptic number.

It is an amenable number.

70609005 is a deficient number, since it is larger than the sum of its proper divisors (52470315).

70609005 is a wasteful number, since it uses less digits than its factorization.

70609005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8861 (or 8858 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 27.

The square root of 70609005 is about 8402.9164579924. The cubic root of 70609005 is about 413.3202631287.

The spelling of 70609005 in words is "seventy million, six hundred nine thousand, five".