34771621 has 2 divisors, whose sum is σ = 34771622. Its totient is φ = 34771620.

The previous prime is 34771619. The next prime is 34771631. The reversal of 34771621 is 12617743.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34456900 + 314721 = 5870^2 + 561^2 .

It is a cyclic number.

It is not a de Polignac number, because 34771621 - 2¹ = 34771619 is a prime.

It is a super-4 number, since 4×34771621⁴ (a number of 31 digits) contains 4444 as substring.

Together with 34771619, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34771631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17385810 + 17385811.

It is an arithmetic number, because the mean of its divisors is an integer number (17385811).

Almost surely, 2^34771621 is an apocalyptic number.

It is an amenable number.

34771621 is a deficient number, since it is larger than the sum of its proper divisors (1).

34771621 is an equidigital number, since it uses as much as digits as its factorization.

34771621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7056, while the sum is 31.

The square root of 34771621 is about 5896.7466453969. The cubic root of 34771621 is about 326.3936085280.

The spelling of 34771621 in words is "thirty-four million, seven hundred seventy-one thousand, six hundred twenty-one".