621775473 has 16 divisors (see below), whose sum is σ = 908395776. Its totient is φ = 375169040.

The previous prime is 621775409. The next prime is 621775487. The reversal of 621775473 is 374577126.

It is a cyclic number.

It is not a de Polignac number, because 621775473 - 2⁶ = 621775409 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (621775403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34011 + ... + 48992.

It is an arithmetic number, because the mean of its divisors is an integer number (56774736).

Almost surely, 2^621775473 is an apocalyptic number.

It is an amenable number.

621775473 is a deficient number, since it is larger than the sum of its proper divisors (286620303).

621775473 is a wasteful number, since it uses less digits than its factorization.

621775473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83244.

The product of its digits is 246960, while the sum is 42.

The square root of 621775473 is about 24935.4260641361. The cubic root of 621775473 is about 853.5150737819.

The spelling of 621775473 in words is "six hundred twenty-one million, seven hundred seventy-five thousand, four hundred seventy-three".