7247777427 has 48 divisors (see below), whose sum is σ = 11819082240. Its totient is φ = 4386357360.

The previous prime is 7247777423. The next prime is 7247777431.

7247777427 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (7247777423) and next prime (7247777431).

It is not a de Polignac number, because 7247777427 - 2² = 7247777423 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7247777423) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3471778 + ... + 3473864.

It is an arithmetic number, because the mean of its divisors is an integer number (246230880).

Almost surely, 2^7247777427 is an apocalyptic number.

7247777427 is a deficient number, since it is larger than the sum of its proper divisors (4571304813).

7247777427 is a wasteful number, since it uses less digits than its factorization.

7247777427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3181 (or 3164 counting only the distinct ones).

The product of its digits is 7529536, while the sum is 54.

The square root of 7247777427 is about 85133.8794311642. The cubic root of 7247777427 is about 1935.2405229528.

The spelling of 7247777427 in words is "seven billion, two hundred forty-seven million, seven hundred seventy-seven thousand, four hundred twenty-seven".