8432772349 has 4 divisors (see below), whose sum is σ = 8461553436. Its totient is φ = 8403991264.

The previous prime is 8432772343. The next prime is 8432772367. The reversal of 8432772349 is 9432772348.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7472392249 + 960380100 = 86443^2 + 30990^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8432772349 is a prime.

It is a super-2 number, since 2×8432772349² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8432772343) 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, 14390104 + ... + 14390689.

It is an arithmetic number, because the mean of its divisors is an integer number (2115388359).

Almost surely, 2^8432772349 is an apocalyptic number.

It is an amenable number.

8432772349 is a deficient number, since it is larger than the sum of its proper divisors (28781087).

8432772349 is a wasteful number, since it uses less digits than its factorization.

8432772349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28781086.

The product of its digits is 2032128, while the sum is 49.

The square root of 8432772349 is about 91830.1276760519. The cubic root of 8432772349 is about 2035.4329097289.

Subtracting 8432772349 from its reverse (9432772348), we obtain a palindrome (999999999).

The spelling of 8432772349 in words is "eight billion, four hundred thirty-two million, seven hundred seventy-two thousand, three hundred forty-nine".