7295783921 has 2 divisors, whose sum is σ = 7295783922. Its totient is φ = 7295783920.

The previous prime is 7295783863. The next prime is 7295783927. The reversal of 7295783921 is 1293875927.

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., 3939319696 + 3356464225 = 62764^2 + 57935^2 .

It is a cyclic number.

It is not a de Polignac number, because 7295783921 - 2¹⁴ = 7295767537 is a prime.

It is not a weakly prime, because it can be changed into another prime (7295783927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3647891960 + 3647891961.

It is an arithmetic number, because the mean of its divisors is an integer number (3647891961).

Almost surely, 2^7295783921 is an apocalyptic number.

It is an amenable number.

7295783921 is a deficient number, since it is larger than the sum of its proper divisors (1).

7295783921 is an equidigital number, since it uses as much as digits as its factorization.

7295783921 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1905120, while the sum is 53.

The square root of 7295783921 is about 85415.3611536005. The cubic root of 7295783921 is about 1939.5038871167.

The spelling of 7295783921 in words is "seven billion, two hundred ninety-five million, seven hundred eighty-three thousand, nine hundred twenty-one".