1227484978 has 8 divisors (see below), whose sum is σ = 1886135580. Its totient is φ = 598773120.

The previous prime is 1227484933. The next prime is 1227485003. The reversal of 1227484978 is 8794847221.

It can be written as a sum of positive squares in 2 ways, for example, as 1227311089 + 173889 = 35033^2 + 417^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7484583 + ... + 7484746.

Almost surely, 2^1227484978 is an apocalyptic number.

1227484978 is a deficient number, since it is larger than the sum of its proper divisors (658650602).

1227484978 is a wasteful number, since it uses less digits than its factorization.

1227484978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14969372.

The product of its digits is 1806336, while the sum is 52.

The square root of 1227484978 is about 35035.4817006988. The cubic root of 1227484978 is about 1070.7105008288.

The spelling of 1227484978 in words is "one billion, two hundred twenty-seven million, four hundred eighty-four thousand, nine hundred seventy-eight".