622407447 has 6 divisors (see below), whose sum is σ = 899032992. Its totient is φ = 414938292.

The previous prime is 622407431. The next prime is 622407449. The reversal of 622407447 is 744704226.

It is a happy number.

622407447 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 622407447 - 2⁴ = 622407431 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (622407449) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 34578183 + ... + 34578200.

It is an arithmetic number, because the mean of its divisors is an integer number (149838832).

Almost surely, 2^622407447 is an apocalyptic number.

622407447 is a deficient number, since it is larger than the sum of its proper divisors (276625545).

622407447 is a wasteful number, since it uses less digits than its factorization.

622407447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69156389 (or 69156386 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 36.

The square root of 622407447 is about 24948.0950575390. The cubic root of 622407447 is about 853.8041474175.

The spelling of 622407447 in words is "six hundred twenty-two million, four hundred seven thousand, four hundred forty-seven".