63770065 has 8 divisors (see below), whose sum is σ = 76677480. Its totient is φ = 50913792.

The previous prime is 63770059. The next prime is 63770089. The reversal of 63770065 is 56007736.

It can be written as a sum of positive squares in 4 ways, for example, as 7354944 + 56415121 = 2712^2 + 7511^2 .

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 63770065 - 2¹¹ = 63768017 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 63770065.

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, 9984 + ... + 15073.

It is an arithmetic number, because the mean of its divisors is an integer number (9584685).

Almost surely, 2^63770065 is an apocalyptic number.

It is an amenable number.

63770065 is a deficient number, since it is larger than the sum of its proper divisors (12907415).

63770065 is a wasteful number, since it uses less digits than its factorization.

63770065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25571.

The product of its (nonzero) digits is 26460, while the sum is 34.

The square root of 63770065 is about 7985.6161315205. The cubic root of 63770065 is about 399.5203939249.

The spelling of 63770065 in words is "sixty-three million, seven hundred seventy thousand, sixty-five".