1364943897 has 12 divisors (see below), whose sum is σ = 1972925604. Its totient is φ = 909344160.

The previous prime is 1364943893. The next prime is 1364943911. The reversal of 1364943897 is 7983494631.

It is a happy number.

1364943897 is a `hidden beast` number, since 1 + 36 + 494 + 38 + 97 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 926837136 + 438106761 = 30444^2 + 20931^2 .

It is not a de Polignac number, because 1364943897 - 2² = 1364943893 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1364943893) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37354 + ... + 64227.

It is an arithmetic number, because the mean of its divisors is an integer number (164410467).

Almost surely, 2^1364943897 is an apocalyptic number.

It is an amenable number.

1364943897 is a deficient number, since it is larger than the sum of its proper divisors (607981707).

1364943897 is a wasteful number, since it uses less digits than its factorization.

1364943897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103080 (or 103077 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 54.

The square root of 1364943897 is about 36945.1471373440. The cubic root of 1364943897 is about 1109.2725523402.

The spelling of 1364943897 in words is "one billion, three hundred sixty-four million, nine hundred forty-three thousand, eight hundred ninety-seven".