63820075 has 12 divisors (see below), whose sum is σ = 86331528. Its totient is φ = 46414400.

The previous prime is 63820063. The next prime is 63820087. The reversal of 63820075 is 57002836.

It is an interprime number because it is at equal distance from previous prime (63820063) and next prime (63820087).

It is not a de Polignac number, because 63820075 - 2¹⁵ = 63787307 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 115762 + ... + 116311.

It is an arithmetic number, because the mean of its divisors is an integer number (7194294).

Almost surely, 2^63820075 is an apocalyptic number.

63820075 is a deficient number, since it is larger than the sum of its proper divisors (22511453).

63820075 is a wasteful number, since it uses less digits than its factorization.

63820075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232094 (or 232089 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 63820075 is about 7988.7467728049. The cubic root of 63820075 is about 399.6248044307.

The spelling of 63820075 in words is "sixty-three million, eight hundred twenty thousand, seventy-five".