381759497 has 32 divisors (see below), whose sum is σ = 487171584. Its totient is φ = 291456000.

The previous prime is 381759493. The next prime is 381759503. The reversal of 381759497 is 794957183.

It is not a de Polignac number, because 381759497 - 2² = 381759493 is a prime.

It is not an unprimeable number, because it can be changed into a prime (381759493) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 275747 + ... + 277127.

It is an arithmetic number, because the mean of its divisors is an integer number (15224112).

Almost surely, 2^381759497 is an apocalyptic number.

It is an amenable number.

381759497 is a deficient number, since it is larger than the sum of its proper divisors (105412087).

381759497 is a wasteful number, since it uses less digits than its factorization.

381759497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1529.

The product of its digits is 1905120, while the sum is 53.

The square root of 381759497 is about 19538.6667150039. Note that the first 3 decimals coincide. The cubic root of 381759497 is about 725.4318454555.

The spelling of 381759497 in words is "three hundred eighty-one million, seven hundred fifty-nine thousand, four hundred ninety-seven".