7357661 has 2 divisors, whose sum is σ = 7357662. Its totient is φ = 7357660.

The previous prime is 7357643. The next prime is 7357667. The reversal of 7357661 is 1667537.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4813636 + 2544025 = 2194^2 + 1595^2 .

It is an emirp because it is prime and its reverse (1667537) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7357661 - 2²² = 3163357 is a prime.

It is a Chen prime.

It is equal to p₄₉₉₂₉₂ and since 7357661 and 499292 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7357667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3678830 + 3678831.

It is an arithmetic number, because the mean of its divisors is an integer number (3678831).

Almost surely, 2^7357661 is an apocalyptic number.

It is an amenable number.

7357661 is a deficient number, since it is larger than the sum of its proper divisors (1).

7357661 is an equidigital number, since it uses as much as digits as its factorization.

7357661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26460, while the sum is 35.

The square root of 7357661 is about 2712.5008755759. The cubic root of 7357661 is about 194.4971572158.

It can be divided in two parts, 73576 and 61, that added together give a palindrome (73637).

The spelling of 7357661 in words is "seven million, three hundred fifty-seven thousand, six hundred sixty-one".