63215790 has 32 divisors (see below), whose sum is σ = 165511296. Its totient is φ = 15324960.

The previous prime is 63215777. The next prime is 63215797. The reversal of 63215790 is 9751236.

63215790 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×63215790² = 7992472210648200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63215797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95452 + ... + 96111.

It is an arithmetic number, because the mean of its divisors is an integer number (5172228).

Almost surely, 2^63215790 is an apocalyptic number.

63215790 is an abundant number, since it is smaller than the sum of its proper divisors (102295506).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63215790 is a wasteful number, since it uses less digits than its factorization.

63215790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191584.

The product of its (nonzero) digits is 11340, while the sum is 33.

The square root of 63215790 is about 7950.8358051214. The cubic root of 63215790 is about 398.3595103486.

The spelling of 63215790 in words is "sixty-three million, two hundred fifteen thousand, seven hundred ninety".