2772352421 has 4 divisors (see below), whose sum is σ = 2785491744. Its totient is φ = 2759213100.

The previous prime is 2772352399. The next prime is 2772352423. The reversal of 2772352421 is 1242532772.

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 2772352421 - 2²² = 2768158117 is a prime.

It is a super-2 number, since 2×2772352421² = 15371875892449122482, which contains 22 as substring.

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 (2772352423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6569345 + ... + 6569766.

It is an arithmetic number, because the mean of its divisors is an integer number (696372936).

Almost surely, 2^2772352421 is an apocalyptic number.

It is an amenable number.

2772352421 is a deficient number, since it is larger than the sum of its proper divisors (13139323).

2772352421 is a wasteful number, since it uses less digits than its factorization.

2772352421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13139322.

The product of its digits is 47040, while the sum is 35.

The square root of 2772352421 is about 52653.1330596765. The cubic root of 2772352421 is about 1404.8053277391.

The spelling of 2772352421 in words is "two billion, seven hundred seventy-two million, three hundred fifty-two thousand, four hundred twenty-one".