38348621 has 2 divisors, whose sum is σ = 38348622. Its totient is φ = 38348620.

The previous prime is 38348603. The next prime is 38348633. The reversal of 38348621 is 12684383.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36735721 + 1612900 = 6061^2 + 1270^2 .

It is a cyclic number.

It is not a de Polignac number, because 38348621 - 2²² = 34154317 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38348671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19174310 + 19174311.

It is an arithmetic number, because the mean of its divisors is an integer number (19174311).

Almost surely, 2^38348621 is an apocalyptic number.

It is an amenable number.

38348621 is a deficient number, since it is larger than the sum of its proper divisors (1).

38348621 is an equidigital number, since it uses as much as digits as its factorization.

38348621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27648, while the sum is 35.

The square root of 38348621 is about 6192.6263410608. The cubic root of 38348621 is about 337.2225311606. Note that the first 3 decimals are identical.

The spelling of 38348621 in words is "thirty-eight million, three hundred forty-eight thousand, six hundred twenty-one".