383497081 has 4 divisors (see below), whose sum is σ = 418360464. Its totient is φ = 348633700.

The previous prime is 383497069. The next prime is 383497087. The reversal of 383497081 is 180794383.

It is a happy number.

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 383497081 - 2²³ = 375108473 is a prime.

It is a super-2 number, since 2×383497081² = 294140022271041122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (383497087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17431675 + ... + 17431696.

It is an arithmetic number, because the mean of its divisors is an integer number (104590116).

Almost surely, 2^383497081 is an apocalyptic number.

It is an amenable number.

383497081 is a deficient number, since it is larger than the sum of its proper divisors (34863383).

383497081 is a wasteful number, since it uses less digits than its factorization.

383497081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34863382.

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 383497081 is about 19583.0814990900. The cubic root of 383497081 is about 726.5307844523.

The spelling of 383497081 in words is "three hundred eighty-three million, four hundred ninety-seven thousand, eighty-one".