68624405 has 8 divisors (see below), whose sum is σ = 82483584. Its totient is φ = 54810000.

The previous prime is 68624401. The next prime is 68624407. The reversal of 68624405 is 50442686.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 68624405 - 2² = 68624401 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 (68624401) 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, 7721 + ... + 14030.

It is an arithmetic number, because the mean of its divisors is an integer number (10310448).

Almost surely, 2^68624405 is an apocalyptic number.

It is an amenable number.

68624405 is a deficient number, since it is larger than the sum of its proper divisors (13859179).

68624405 is a wasteful number, since it uses less digits than its factorization.

68624405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22387.

The product of its (nonzero) digits is 46080, while the sum is 35.

The square root of 68624405 is about 8283.9848503000. The cubic root of 68624405 is about 409.4110222561.

The spelling of 68624405 in words is "sixty-eight million, six hundred twenty-four thousand, four hundred five".