7641377 has 2 divisors, whose sum is σ = 7641378. Its totient is φ = 7641376.

The previous prime is 7641373. The next prime is 7641379. The reversal of 7641377 is 7731467.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7639696 + 1681 = 2764^2 + 41^2 .

It is a cyclic number.

It is not a de Polignac number, because 7641377 - 2² = 7641373 is a prime.

It is a super-2 number, since 2×7641377² = 116781284912258, which contains 22 as substring.

Together with 7641379, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (7641371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3820688 + 3820689.

It is an arithmetic number, because the mean of its divisors is an integer number (3820689).

Almost surely, 2^7641377 is an apocalyptic number.

It is an amenable number.

7641377 is a deficient number, since it is larger than the sum of its proper divisors (1).

7641377 is an equidigital number, since it uses as much as digits as its factorization.

7641377 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24696, while the sum is 35.

The square root of 7641377 is about 2764.3040715522. The cubic root of 7641377 is about 196.9656720830.

The spelling of 7641377 in words is "seven million, six hundred forty-one thousand, three hundred seventy-seven".