384756497 has 4 divisors (see below), whose sum is σ = 384796596. Its totient is φ = 384716400.

The previous prime is 384756473. The next prime is 384756503. The reversal of 384756497 is 794657483.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 271887121 + 112869376 = 16489^2 + 10624^2 .

It is a cyclic number.

It is not a de Polignac number, because 384756497 - 2⁶ = 384756433 is a prime.

It is a super-2 number, since 2×384756497² = 296075123967422018, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (384756457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3803 + ... + 27999.

It is an arithmetic number, because the mean of its divisors is an integer number (96199149).

Almost surely, 2^384756497 is an apocalyptic number.

It is an amenable number.

384756497 is a deficient number, since it is larger than the sum of its proper divisors (40099).

384756497 is a wasteful number, since it uses less digits than its factorization.

384756497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40098.

The product of its digits is 5080320, while the sum is 53.

The square root of 384756497 is about 19615.2108579031. The cubic root of 384756497 is about 727.3252317714.

The spelling of 384756497 in words is "three hundred eighty-four million, seven hundred fifty-six thousand, four hundred ninety-seven".