3457384621 has 2 divisors, whose sum is σ = 3457384622. Its totient is φ = 3457384620.

The previous prime is 3457384603. The next prime is 3457384649. The reversal of 3457384621 is 1264837543.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3349515625 + 107868996 = 57875^2 + 10386^2 .

It is a cyclic number.

It is not a de Polignac number, because 3457384621 - 2⁷ = 3457384493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3457384661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1728692310 + 1728692311.

It is an arithmetic number, because the mean of its divisors is an integer number (1728692311).

Almost surely, 2^3457384621 is an apocalyptic number.

It is an amenable number.

3457384621 is a deficient number, since it is larger than the sum of its proper divisors (1).

3457384621 is an equidigital number, since it uses as much as digits as its factorization.

3457384621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 483840, while the sum is 43.

The square root of 3457384621 is about 58799.5290882504. The cubic root of 3457384621 is about 1512.1071441586.

The spelling of 3457384621 in words is "three billion, four hundred fifty-seven million, three hundred eighty-four thousand, six hundred twenty-one".