7736381 has 2 divisors, whose sum is σ = 7736382. Its totient is φ = 7736380.

The previous prime is 7736369. The next prime is 7736383. The reversal of 7736381 is 1836377.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4239481 + 3496900 = 2059^2 + 1870^2 .

It is a cyclic number.

It is not a de Polignac number, because 7736381 - 2¹⁴ = 7719997 is a prime.

It is a super-2 number, since 2×7736381² = 119703181954322, which contains 22 as substring.

Together with 7736383, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7736383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3868190 + 3868191.

It is an arithmetic number, because the mean of its divisors is an integer number (3868191).

Almost surely, 2^7736381 is an apocalyptic number.

It is an amenable number.

7736381 is a deficient number, since it is larger than the sum of its proper divisors (1).

7736381 is an equidigital number, since it uses as much as digits as its factorization.

7736381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21168, while the sum is 35.

The square root of 7736381 is about 2781.4350612588. The cubic root of 7736381 is about 197.7785931059.

The spelling of 7736381 in words is "seven million, seven hundred thirty-six thousand, three hundred eighty-one".