70646245 has 4 divisors (see below), whose sum is σ = 84775500. Its totient is φ = 56516992.

The previous prime is 70646231. The next prime is 70646263. The reversal of 70646245 is 54264607.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9696996 + 60949249 = 3114^2 + 7807^2 .

It is a cyclic number.

It is not a de Polignac number, because 70646245 - 2⁹ = 70645733 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 70646245.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7064620 + ... + 7064629.

It is an arithmetic number, because the mean of its divisors is an integer number (21193875).

Almost surely, 2^70646245 is an apocalyptic number.

It is an amenable number.

70646245 is a deficient number, since it is larger than the sum of its proper divisors (14129255).

70646245 is a wasteful number, since it uses less digits than its factorization.

70646245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14129254.

The product of its (nonzero) digits is 40320, while the sum is 34.

The square root of 70646245 is about 8405.1320632100. The cubic root of 70646245 is about 413.3929136422.

The spelling of 70646245 in words is "seventy million, six hundred forty-six thousand, two hundred forty-five".