3430501621 has 4 divisors (see below), whose sum is σ = 3632295852. Its totient is φ = 3228707392.

The previous prime is 3430501619. The next prime is 3430501637. The reversal of 3430501621 is 1261050343.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1282642596 + 2147859025 = 35814^2 + 46345^2 .

It is a cyclic number.

It is not a de Polignac number, because 3430501621 - 2¹ = 3430501619 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 (3430591621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100897090 + ... + 100897123.

It is an arithmetic number, because the mean of its divisors is an integer number (908073963).

Almost surely, 2^3430501621 is an apocalyptic number.

It is an amenable number.

3430501621 is a deficient number, since it is larger than the sum of its proper divisors (201794231).

3430501621 is a wasteful number, since it uses less digits than its factorization.

3430501621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201794230.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 3430501621 is about 58570.4842134671. The cubic root of 3430501621 is about 1508.1777971043.

Adding to 3430501621 its reverse (1261050343), we get a palindrome (4691551964).

The spelling of 3430501621 in words is "three billion, four hundred thirty million, five hundred one thousand, six hundred twenty-one".