366461989 has 2 divisors, whose sum is σ = 366461990. Its totient is φ = 366461988.

The previous prime is 366461983. The next prime is 366461999. The reversal of 366461989 is 989164663.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 360620100 + 5841889 = 18990^2 + 2417^2 .

It is a cyclic number.

It is not a de Polignac number, because 366461989 - 2¹³ = 366453797 is a prime.

It is a super-2 number, since 2×366461989² = 268588778763672242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (366461983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 183230994 + 183230995.

It is an arithmetic number, because the mean of its divisors is an integer number (183230995).

Almost surely, 2^366461989 is an apocalyptic number.

It is an amenable number.

366461989 is a deficient number, since it is larger than the sum of its proper divisors (1).

366461989 is an equidigital number, since it uses as much as digits as its factorization.

366461989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1679616, while the sum is 52.

The square root of 366461989 is about 19143.1969378158. The cubic root of 366461989 is about 715.6098528070.

The spelling of 366461989 in words is "three hundred sixty-six million, four hundred sixty-one thousand, nine hundred eighty-nine".