63020813 has 8 divisors (see below), whose sum is σ = 64665216. Its totient is φ = 61381600.

The previous prime is 63020809. The next prime is 63020863. The reversal of 63020813 is 31802036.

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 63020813 - 2² = 63020809 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 (63020863) 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, 39020 + ... + 40602.

It is an arithmetic number, because the mean of its divisors is an integer number (8083152).

Almost surely, 2^63020813 is an apocalyptic number.

It is an amenable number.

63020813 is a deficient number, since it is larger than the sum of its proper divisors (1644403).

63020813 is a wasteful number, since it uses less digits than its factorization.

63020813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2595.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 63020813 is about 7938.5649206894. The cubic root of 63020813 is about 397.9495340169.

Adding to 63020813 its reverse (31802036), we get a palindrome (94822849).

The spelling of 63020813 in words is "sixty-three million, twenty thousand, eight hundred thirteen".