7613381 has 2 divisors, whose sum is σ = 7613382. Its totient is φ = 7613380.

The previous prime is 7613377. The next prime is 7613387. The reversal of 7613381 is 1833167.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6477025 + 1136356 = 2545^2 + 1066^2 .

It is a cyclic number.

It is not a de Polignac number, because 7613381 - 2² = 7613377 is a prime.

It is a super-3 number, since 3×7613381³ (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7613387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3806690 + 3806691.

It is an arithmetic number, because the mean of its divisors is an integer number (3806691).

Almost surely, 2^7613381 is an apocalyptic number.

It is an amenable number.

7613381 is a deficient number, since it is larger than the sum of its proper divisors (1).

7613381 is an equidigital number, since it uses as much as digits as its factorization.

7613381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3024, while the sum is 29.

The square root of 7613381 is about 2759.2355825482. The cubic root of 7613381 is about 196.7248342099.

The spelling of 7613381 in words is "seven million, six hundred thirteen thousand, three hundred eighty-one".