367431661 has 2 divisors, whose sum is σ = 367431662. Its totient is φ = 367431660.

The previous prime is 367431613. The next prime is 367431677. The reversal of 367431661 is 166134763.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 310429161 + 57002500 = 17619^2 + 7550^2 .

It is an emirp because it is prime and its reverse (166134763) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 367431661 - 2²³ = 359043053 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 367431661.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (367431611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 183715830 + 183715831.

It is an arithmetic number, because the mean of its divisors is an integer number (183715831).

Almost surely, 2^367431661 is an apocalyptic number.

It is an amenable number.

367431661 is a deficient number, since it is larger than the sum of its proper divisors (1).

367431661 is an equidigital number, since it uses as much as digits as its factorization.

367431661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54432, while the sum is 37.

The square root of 367431661 is about 19168.5070101977. The cubic root of 367431661 is about 716.2404736460.

The spelling of 367431661 in words is "three hundred sixty-seven million, four hundred thirty-one thousand, six hundred sixty-one".