1228473697 has 16 divisors (see below), whose sum is σ = 1368887040. Its totient is φ = 1092956800.

The previous prime is 1228473689. The next prime is 1228473707. The reversal of 1228473697 is 7963748221.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1228473697 - 2³ = 1228473689 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1228473697.

It is not an unprimeable number, because it can be changed into a prime (1228473097) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 248829 + ... + 253717.

It is an arithmetic number, because the mean of its divisors is an integer number (85555440).

Almost surely, 2^1228473697 is an apocalyptic number.

It is an amenable number.

1228473697 is a deficient number, since it is larger than the sum of its proper divisors (140413343).

1228473697 is a wasteful number, since it uses less digits than its factorization.

1228473697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5384.

The product of its digits is 1016064, while the sum is 49.

The square root of 1228473697 is about 35049.5891131408. The cubic root of 1228473697 is about 1070.9979035873.

The spelling of 1228473697 in words is "one billion, two hundred twenty-eight million, four hundred seventy-three thousand, six hundred ninety-seven".