70866245 has 8 divisors (see below), whose sum is σ = 87113880. Its totient is φ = 55310080.

The previous prime is 70866223. The next prime is 70866253. The reversal of 70866245 is 54266807.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 289444 + 70576801 = 538^2 + 8401^2 .

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

It is not a de Polignac number, because 70866245 - 2²⁰ = 69817669 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 70866199 and 70866208.

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, 172640 + ... + 173049.

It is an arithmetic number, because the mean of its divisors is an integer number (10889235).

Almost surely, 2^70866245 is an apocalyptic number.

It is an amenable number.

70866245 is a deficient number, since it is larger than the sum of its proper divisors (16247635).

70866245 is a wasteful number, since it uses less digits than its factorization.

70866245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345735.

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 70866245 is about 8418.2091325887. The cubic root of 70866245 is about 413.8215856277.

It can be divided in two parts, 7086 and 6245, that added together give a palindrome (13331).

The spelling of 70866245 in words is "seventy million, eight hundred sixty-six thousand, two hundred forty-five".