2421291347 has 4 divisors (see below), whose sum is σ = 2421689760. Its totient is φ = 2420892936.

The previous prime is 2421291311. The next prime is 2421291409. The reversal of 2421291347 is 7431921242.

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 2421291347 - 2¹⁸ = 2421029203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2421291247) 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, 189947 + ... + 202292.

It is an arithmetic number, because the mean of its divisors is an integer number (605422440).

Almost surely, 2^2421291347 is an apocalyptic number.

2421291347 is a deficient number, since it is larger than the sum of its proper divisors (398413).

2421291347 is an equidigital number, since it uses as much as digits as its factorization.

2421291347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398412.

The product of its digits is 24192, while the sum is 35.

The square root of 2421291347 is about 49206.6189348547. The cubic root of 2421291347 is about 1342.8134522103.

The spelling of 2421291347 in words is "two billion, four hundred twenty-one million, two hundred ninety-one thousand, three hundred forty-seven".