1384940597 has 4 divisors (see below), whose sum is σ = 1403912460. Its totient is φ = 1365968736.

The previous prime is 1384940591. The next prime is 1384940611. The reversal of 1384940597 is 7950494831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7950494831 = 853 ⋅9320627.

It can be written as a sum of positive squares in 2 ways, for example, as 919848241 + 465092356 = 30329^2 + 21566^2 .

It is a cyclic number.

It is not a de Polignac number, because 1384940597 - 2⁸ = 1384940341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1384940591) 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, 9485822 + ... + 9485967.

It is an arithmetic number, because the mean of its divisors is an integer number (350978115).

Almost surely, 2^1384940597 is an apocalyptic number.

It is an amenable number.

1384940597 is a deficient number, since it is larger than the sum of its proper divisors (18971863).

1384940597 is an equidigital number, since it uses as much as digits as its factorization.

1384940597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18971862.

The product of its (nonzero) digits is 1088640, while the sum is 50.

The square root of 1384940597 is about 37214.7900303092. The cubic root of 1384940597 is about 1114.6633333738.

The spelling of 1384940597 in words is "one billion, three hundred eighty-four million, nine hundred forty thousand, five hundred ninety-seven".