7295947621 has 4 divisors (see below), whose sum is σ = 7296131052. Its totient is φ = 7295764192.

The previous prime is 7295947567. The next prime is 7295947627. The reversal of 7295947621 is 1267495927.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1267495927 = 109 ⋅11628403.

It can be written as a sum of positive squares in 2 ways, for example, as 5301878596 + 1994069025 = 72814^2 + 44655^2 .

It is a cyclic number.

It is not a de Polignac number, because 7295947621 - 2¹³ = 7295939429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7295947627) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4246 + ... + 120871.

It is an arithmetic number, because the mean of its divisors is an integer number (1824032763).

Almost surely, 2^7295947621 is an apocalyptic number.

It is an amenable number.

7295947621 is a deficient number, since it is larger than the sum of its proper divisors (183431).

7295947621 is a wasteful number, since it uses less digits than its factorization.

7295947621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183430.

The product of its digits is 1905120, while the sum is 52.

The square root of 7295947621 is about 85416.3194067738. The cubic root of 7295947621 is about 1939.5183929562.

The spelling of 7295947621 in words is "seven billion, two hundred ninety-five million, nine hundred forty-seven thousand, six hundred twenty-one".