384662969 has 2 divisors, whose sum is σ = 384662970. Its totient is φ = 384662968.

The previous prime is 384662959. The next prime is 384663053. The reversal of 384662969 is 969266483.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 369139369 + 15523600 = 19213^2 + 3940^2 .

It is a cyclic number.

It is not a de Polignac number, because 384662969 - 2⁴ = 384662953 is a prime.

It is a super-2 number, since 2×384662969² = 295931199439789922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 384662969.

It is not a weakly prime, because it can be changed into another prime (384662959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192331484 + 192331485.

It is an arithmetic number, because the mean of its divisors is an integer number (192331485).

Almost surely, 2^384662969 is an apocalyptic number.

It is an amenable number.

384662969 is a deficient number, since it is larger than the sum of its proper divisors (1).

384662969 is an equidigital number, since it uses as much as digits as its factorization.

384662969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3359232, while the sum is 53.

The square root of 384662969 is about 19612.8266448261. The cubic root of 384662969 is about 727.2662933801.

The spelling of 384662969 in words is "three hundred eighty-four million, six hundred sixty-two thousand, nine hundred sixty-nine".