63385477 has 4 divisors (see below), whose sum is σ = 65098636. Its totient is φ = 61672320.

The previous prime is 63385471. The next prime is 63385481. The reversal of 63385477 is 77458336.

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 52620516 + 10764961 = 7254^2 + 3281^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63385477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63385471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 856524 + ... + 856597.

It is an arithmetic number, because the mean of its divisors is an integer number (16274659).

Almost surely, 2^63385477 is an apocalyptic number.

It is an amenable number.

63385477 is a deficient number, since it is larger than the sum of its proper divisors (1713159).

63385477 is a wasteful number, since it uses less digits than its factorization.

63385477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1713158.

The product of its digits is 423360, while the sum is 43.

The square root of 63385477 is about 7961.4996702883. The cubic root of 63385477 is about 398.7156241105.

The spelling of 63385477 in words is "sixty-three million, three hundred eighty-five thousand, four hundred seventy-seven".