1228836937 has 8 divisors (see below), whose sum is σ = 1233936704. Its totient is φ = 1223747568.

The previous prime is 1228836881. The next prime is 1228836941. The reversal of 1228836937 is 7396388221.

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 1228836937 - 2¹⁵ = 1228804169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1228836967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 304978 + ... + 308980.

It is an arithmetic number, because the mean of its divisors is an integer number (154242088).

Almost surely, 2^1228836937 is an apocalyptic number.

It is an amenable number.

1228836937 is a deficient number, since it is larger than the sum of its proper divisors (5099767).

1228836937 is an equidigital number, since it uses as much as digits as its factorization.

1228836937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5199.

The product of its digits is 870912, while the sum is 49.

The square root of 1228836937 is about 35054.7705312701. The cubic root of 1228836937 is about 1071.1034521615.

The spelling of 1228836937 in words is "one billion, two hundred twenty-eight million, eight hundred thirty-six thousand, nine hundred thirty-seven".