34361621 has 4 divisors (see below), whose sum is σ = 39270432. Its totient is φ = 29452812.

The previous prime is 34361617. The next prime is 34361627. The reversal of 34361621 is 12616343.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12616343 = 3533 ⋅3571.

It is a cyclic number.

It is not a de Polignac number, because 34361621 - 2² = 34361617 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 (34361627) 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, 2454395 + ... + 2454408.

It is an arithmetic number, because the mean of its divisors is an integer number (9817608).

Almost surely, 2^34361621 is an apocalyptic number.

It is an amenable number.

34361621 is a deficient number, since it is larger than the sum of its proper divisors (4908811).

34361621 is an equidigital number, since it uses as much as digits as its factorization.

34361621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4908810.

The product of its digits is 2592, while the sum is 26.

The square root of 34361621 is about 5861.8786237861. The cubic root of 34361621 is about 325.1056729348.

Adding to 34361621 its reverse (12616343), we get a palindrome (46977964).

The spelling of 34361621 in words is "thirty-four million, three hundred sixty-one thousand, six hundred twenty-one".