4247222477 has 4 divisors (see below), whose sum is σ = 4248558336. Its totient is φ = 4245886620.

The previous prime is 4247222459. The next prime is 4247222491. The reversal of 4247222477 is 7742227424.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4247222477 - 2²⁰ = 4246173901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4247227477) 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, 663149 + ... + 669522.

It is an arithmetic number, because the mean of its divisors is an integer number (1062139584).

Almost surely, 2^4247222477 is an apocalyptic number.

It is an amenable number.

4247222477 is a deficient number, since it is larger than the sum of its proper divisors (1335859).

4247222477 is a wasteful number, since it uses less digits than its factorization.

4247222477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1335858.

The product of its digits is 351232, while the sum is 41.

The square root of 4247222477 is about 65170.7179414191. The cubic root of 4247222477 is about 1619.4529572195.

The spelling of 4247222477 in words is "four billion, two hundred forty-seven million, two hundred twenty-two thousand, four hundred seventy-seven".