1027345649 has 8 divisors (see below), whose sum is σ = 1186666848. Its totient is φ = 879012160.

The previous prime is 1027345621. The next prime is 1027345667. The reversal of 1027345649 is 9465437201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1027345649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1027345609) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2746727 + ... + 2747100.

It is an arithmetic number, because the mean of its divisors is an integer number (148333356).

Almost surely, 2^1027345649 is an apocalyptic number.

It is an amenable number.

1027345649 is a deficient number, since it is larger than the sum of its proper divisors (159321199).

1027345649 is a wasteful number, since it uses less digits than its factorization.

1027345649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5493855.

The product of its (nonzero) digits is 181440, while the sum is 41.

The square root of 1027345649 is about 32052.2331359299. The cubic root of 1027345649 is about 1009.0333688673.

The spelling of 1027345649 in words is "one billion, twenty-seven million, three hundred forty-five thousand, six hundred forty-nine".