2246737921 has 4 divisors (see below), whose sum is σ = 2246838532. Its totient is φ = 2246637312.

The previous prime is 2246737879. The next prime is 2246737937. The reversal of 2246737921 is 1297376422.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 669774400 + 1576963521 = 25880^2 + 39711^2 .

It is a cyclic number.

It is not a de Polignac number, because 2246737921 - 2¹¹ = 2246735873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2246737951) 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, 120 + ... + 67033.

It is an arithmetic number, because the mean of its divisors is an integer number (561709633).

Almost surely, 2^2246737921 is an apocalyptic number.

It is an amenable number.

2246737921 is a deficient number, since it is larger than the sum of its proper divisors (100611).

2246737921 is an equidigital number, since it uses as much as digits as its factorization.

2246737921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100610.

The product of its digits is 254016, while the sum is 43.

The square root of 2246737921 is about 47399.7670985839. The cubic root of 2246737921 is about 1309.7371267109.

The spelling of 2246737921 in words is "two billion, two hundred forty-six million, seven hundred thirty-seven thousand, nine hundred twenty-one".