70565405 has 8 divisors (see below), whose sum is σ = 85942752. Its totient is φ = 55609488.

The previous prime is 70565389. The next prime is 70565413. The reversal of 70565405 is 50456507.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 70565405 - 2⁴ = 70565389 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104987 + ... + 105656.

It is an arithmetic number, because the mean of its divisors is an integer number (10742844).

Almost surely, 2^70565405 is an apocalyptic number.

It is an amenable number.

70565405 is a deficient number, since it is larger than the sum of its proper divisors (15377347).

70565405 is a wasteful number, since it uses less digits than its factorization.

70565405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210715.

The product of its (nonzero) digits is 21000, while the sum is 32.

The square root of 70565405 is about 8400.3217200295. The cubic root of 70565405 is about 413.2351725942.

The spelling of 70565405 in words is "seventy million, five hundred sixty-five thousand, four hundred five".