2347891061 has 4 divisors (see below), whose sum is σ = 2368668972. Its totient is φ = 2327113152.

The previous prime is 2347891027. The next prime is 2347891081. The reversal of 2347891061 is 1601987432.

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

It can be written as a sum of positive squares in 2 ways, for example, as 65918161 + 2281972900 = 8119^2 + 47770^2 .

It is a cyclic number.

It is not a de Polignac number, because 2347891061 - 2¹⁴ = 2347874677 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2347891081) 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, 10388786 + ... + 10389011.

It is an arithmetic number, because the mean of its divisors is an integer number (592167243).

Almost surely, 2^2347891061 is an apocalyptic number.

It is an amenable number.

2347891061 is a deficient number, since it is larger than the sum of its proper divisors (20777911).

2347891061 is a wasteful number, since it uses less digits than its factorization.

2347891061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20777910.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 2347891061 is about 48455.0416468710. The cubic root of 2347891061 is about 1329.1050683315.

The spelling of 2347891061 in words is "two billion, three hundred forty-seven million, eight hundred ninety-one thousand, sixty-one".