621034473 has 16 divisors (see below), whose sum is σ = 842920256. Its totient is φ = 406607040.

The previous prime is 621034411. The next prime is 621034487. The reversal of 621034473 is 374430126.

It is not a de Polignac number, because 621034473 - 2⁹ = 621033961 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 621034473.

It is not an unprimeable number, because it can be changed into a prime (621034493) 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, 136290 + ... + 140772.

It is an arithmetic number, because the mean of its divisors is an integer number (52682516).

Almost surely, 2^621034473 is an apocalyptic number.

It is an amenable number.

621034473 is a deficient number, since it is larger than the sum of its proper divisors (221885783).

621034473 is a wasteful number, since it uses less digits than its factorization.

621034473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5304.

The product of its (nonzero) digits is 12096, while the sum is 30.

The square root of 621034473 is about 24920.5632560743. The cubic root of 621034473 is about 853.1758805597.

Adding to 621034473 its reverse (374430126), we get a palindrome (995464599).

The spelling of 621034473 in words is "six hundred twenty-one million, thirty-four thousand, four hundred seventy-three".