385384497 has 4 divisors (see below), whose sum is σ = 513846000. Its totient is φ = 256922996.

The previous prime is 385384487. The next prime is 385384499. The reversal of 385384497 is 794483583.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 385384497 - 2¹¹ = 385382449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (385384499) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64230747 + ... + 64230752.

It is an arithmetic number, because the mean of its divisors is an integer number (128461500).

Almost surely, 2^385384497 is an apocalyptic number.

It is an amenable number.

385384497 is a deficient number, since it is larger than the sum of its proper divisors (128461503).

385384497 is a wasteful number, since it uses less digits than its factorization.

385384497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128461502.

The product of its digits is 2903040, while the sum is 51.

The square root of 385384497 is about 19631.2123161052. The cubic root of 385384497 is about 727.7207303669.

It can be divided in two parts, 385384 and 497, that added together give a triangular number (385881 = T₈₇₈).

The spelling of 385384497 in words is "three hundred eighty-five million, three hundred eighty-four thousand, four hundred ninety-seven".