1226829773 has 8 divisors (see below), whose sum is σ = 1322050968. Its totient is φ = 1131729984.

The previous prime is 1226829763. The next prime is 1226829797. The reversal of 1226829773 is 3779286221.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 132411049 + 1094418724 = 11507^2 + 33082^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1226829773 - 2¹⁴ = 1226813389 is a prime.

It is a super-2 number, since 2×1226829773² = 3010222583838463058, which 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 (1226829733) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8786 + ... + 50307.

It is an arithmetic number, because the mean of its divisors is an integer number (165256371).

Almost surely, 2^1226829773 is an apocalyptic number.

1226829773 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1226829773 is a deficient number, since it is larger than the sum of its proper divisors (95221195).

1226829773 is a wasteful number, since it uses less digits than its factorization.

1226829773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60703.

The product of its digits is 508032, while the sum is 47.

The square root of 1226829773 is about 35026.1298604342. The cubic root of 1226829773 is about 1070.5199595337.

The spelling of 1226829773 in words is "one billion, two hundred twenty-six million, eight hundred twenty-nine thousand, seven hundred seventy-three".