9377245621 has 2 divisors, whose sum is σ = 9377245622. Its totient is φ = 9377245620.

The previous prime is 9377245571. The next prime is 9377245637. The reversal of 9377245621 is 1265427739.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8894564721 + 482680900 = 94311^2 + 21970^2 .

It is an emirp because it is prime and its reverse (1265427739) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9377245621 - 2¹⁵ = 9377212853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9377245651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4688622810 + 4688622811.

It is an arithmetic number, because the mean of its divisors is an integer number (4688622811).

Almost surely, 2^9377245621 is an apocalyptic number.

It is an amenable number.

9377245621 is a deficient number, since it is larger than the sum of its proper divisors (1).

9377245621 is an equidigital number, since it uses as much as digits as its factorization.

9377245621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 635040, while the sum is 46.

The square root of 9377245621 is about 96836.1792978224. The cubic root of 9377245621 is about 2108.7500080453.

The spelling of 9377245621 in words is "nine billion, three hundred seventy-seven million, two hundred forty-five thousand, six hundred twenty-one".