63820007 has 4 divisors (see below), whose sum is σ = 63889056. Its totient is φ = 63750960.

The previous prime is 63819997. The next prime is 63820019. The reversal of 63820007 is 70002836.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 63820007 - 2¹² = 63815911 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 (63820037) 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, 33119 + ... + 34992.

It is an arithmetic number, because the mean of its divisors is an integer number (15972264).

Almost surely, 2^63820007 is an apocalyptic number.

63820007 is a deficient number, since it is larger than the sum of its proper divisors (69049).

63820007 is an equidigital number, since it uses as much as digits as its factorization.

63820007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69048.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 63820007 is about 7988.7425168170. The cubic root of 63820007 is about 399.6246624979.

The spelling of 63820007 in words is "sixty-three million, eight hundred twenty thousand, seven".