2104597739 has 4 divisors (see below), whose sum is σ = 2228397624. Its totient is φ = 1980797856.

The previous prime is 2104597709. The next prime is 2104597741. The reversal of 2104597739 is 9377954012.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2104597739 - 2¹² = 2104593643 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2104597693 and 2104597702.

It is not an unprimeable number, because it can be changed into a prime (2104597709) 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, 61899917 + ... + 61899950.

It is an arithmetic number, because the mean of its divisors is an integer number (557099406).

Almost surely, 2^2104597739 is an apocalyptic number.

2104597739 is a deficient number, since it is larger than the sum of its proper divisors (123799885).

2104597739 is a wasteful number, since it uses less digits than its factorization.

2104597739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123799884.

The product of its (nonzero) digits is 476280, while the sum is 47.

The square root of 2104597739 is about 45875.8949667470. The cubic root of 2104597739 is about 1281.5130502408.

The spelling of 2104597739 in words is "two billion, one hundred four million, five hundred ninety-seven thousand, seven hundred thirty-nine".