68622804 has 36 divisors (see below), whose sum is σ = 176312500. Its totient is φ = 22498560.

The previous prime is 68622793. The next prime is 68622811. The reversal of 68622804 is 40822686.

It can be written as a sum of positive squares in 2 ways, for example, as 19342404 + 49280400 = 4398^2 + 7020^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent 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, 13429 + ... + 17820.

Almost surely, 2^68622804 is an apocalyptic number.

It is an amenable number.

68622804 is an abundant number, since it is smaller than the sum of its proper divisors (107689696).

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

68622804 is a wasteful number, since it uses less digits than its factorization.

68622804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31320 (or 31315 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The square root of 68622804 is about 8283.8882174979. Note that the first 3 decimals coincide. The cubic root of 68622804 is about 409.4078383929.

The spelling of 68622804 in words is "sixty-eight million, six hundred twenty-two thousand, eight hundred four".