68563420 has 24 divisors (see below), whose sum is σ = 144144000. Its totient is φ = 27394752.

The previous prime is 68563409. The next prime is 68563421. The reversal of 68563420 is 2436586.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68563421) 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, 27381 + ... + 29779.

It is an arithmetic number, because the mean of its divisors is an integer number (6006000).

Almost surely, 2^68563420 is an apocalyptic number.

It is an amenable number.

68563420 is an abundant number, since it is smaller than the sum of its proper divisors (75580580).

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

68563420 is a wasteful number, since it uses less digits than its factorization.

68563420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3837 (or 3835 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 68563420 is about 8280.3031345477. The cubic root of 68563420 is about 409.2897081211.

The spelling of 68563420 in words is "sixty-eight million, five hundred sixty-three thousand, four hundred twenty".