34621387 has 2 divisors, whose sum is σ = 34621388. Its totient is φ = 34621386.

The previous prime is 34621369. The next prime is 34621393. The reversal of 34621387 is 78312643.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (78312643) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 34621387 - 2¹⁹ = 34097099 is a prime.

It is not a weakly prime, because it can be changed into another prime (34621397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17310693 + 17310694.

It is an arithmetic number, because the mean of its divisors is an integer number (17310694).

Almost surely, 2^34621387 is an apocalyptic number.

34621387 is a deficient number, since it is larger than the sum of its proper divisors (1).

34621387 is an equidigital number, since it uses as much as digits as its factorization.

34621387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192, while the sum is 34.

The square root of 34621387 is about 5883.9941366388. The cubic root of 34621387 is about 325.9228586592.

The spelling of 34621387 in words is "thirty-four million, six hundred twenty-one thousand, three hundred eighty-seven".