63620933 has 4 divisors (see below), whose sum is σ = 63641760. Its totient is φ = 63600108.

The previous prime is 63620927. The next prime is 63620941. The reversal of 63620933 is 33902636.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 63620933 - 2⁴ = 63620917 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 63620933.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63620993) 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, 4835 + ... + 12272.

It is an arithmetic number, because the mean of its divisors is an integer number (15910440).

Almost surely, 2^63620933 is an apocalyptic number.

It is an amenable number.

63620933 is a deficient number, since it is larger than the sum of its proper divisors (20827).

63620933 is a wasteful number, since it uses less digits than its factorization.

63620933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20826.

The product of its (nonzero) digits is 17496, while the sum is 32.

The square root of 63620933 is about 7976.2731272193. The cubic root of 63620933 is about 399.2087127769.

The spelling of 63620933 in words is "sixty-three million, six hundred twenty thousand, nine hundred thirty-three".