63820313 has 8 divisors (see below), whose sum is σ = 66769920. Its totient is φ = 60937120.

The previous prime is 63820307. The next prime is 63820319. The reversal of 63820313 is 31302836.

It is an interprime number because it is at equal distance from previous prime (63820307) and next prime (63820319).

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 63820313 - 2⁶ = 63820249 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (63820319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14633 + ... + 18486.

It is an arithmetic number, because the mean of its divisors is an integer number (8346240).

Almost surely, 2^63820313 is an apocalyptic number.

It is an amenable number.

63820313 is a deficient number, since it is larger than the sum of its proper divisors (2949607).

63820313 is a wasteful number, since it uses less digits than its factorization.

63820313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33207.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 63820313 is about 7988.7616687444. The cubic root of 63820313 is about 399.6253011949.

The spelling of 63820313 in words is "sixty-three million, eight hundred twenty thousand, three hundred thirteen".