2247621377 has 4 divisors (see below), whose sum is σ = 2269875156. Its totient is φ = 2225367600.

The previous prime is 2247621373. The next prime is 2247621379. The reversal of 2247621377 is 7731267422.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7731267422 = 2 ⋅3865633711.

It can be written as a sum of positive squares in 2 ways, for example, as 1855541776 + 392079601 = 43076^2 + 19801^2 .

It is a cyclic number.

It is not a de Polignac number, because 2247621377 - 2² = 2247621373 is a prime.

It is a super-2 number, since 2×2247621377² = 10103603708694752258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2247621373) 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, 11126738 + ... + 11126939.

It is an arithmetic number, because the mean of its divisors is an integer number (567468789).

Almost surely, 2^2247621377 is an apocalyptic number.

It is an amenable number.

2247621377 is a deficient number, since it is larger than the sum of its proper divisors (22253779).

2247621377 is a wasteful number, since it uses less digits than its factorization.

2247621377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22253778.

The product of its digits is 197568, while the sum is 41.

The square root of 2247621377 is about 47409.0853845547. The cubic root of 2247621377 is about 1309.9087746042.

Adding to 2247621377 its reverse (7731267422), we get a palindrome (9978888799).

The spelling of 2247621377 in words is "two billion, two hundred forty-seven million, six hundred twenty-one thousand, three hundred seventy-seven".