108364621 has 2 divisors, whose sum is σ = 108364622. Its totient is φ = 108364620.

The previous prime is 108364591. The next prime is 108364691. The reversal of 108364621 is 126463801.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 80802121 + 27562500 = 8989^2 + 5250^2 .

It is a cyclic number.

It is not a de Polignac number, because 108364621 - 2¹⁷ = 108233549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (108364691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54182310 + 54182311.

It is an arithmetic number, because the mean of its divisors is an integer number (54182311).

Almost surely, 2^108364621 is an apocalyptic number.

It is an amenable number.

108364621 is a deficient number, since it is larger than the sum of its proper divisors (1).

108364621 is an equidigital number, since it uses as much as digits as its factorization.

108364621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 108364621 is about 10409.8328997155. The cubic root of 108364621 is about 476.7556393053.

The spelling of 108364621 in words is "one hundred eight million, three hundred sixty-four thousand, six hundred twenty-one".