1478478983 has 4 divisors (see below), whose sum is σ = 1514539488. Its totient is φ = 1442418480.

The previous prime is 1478478979. The next prime is 1478479033. The reversal of 1478478983 is 3898748741.

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

It is a cyclic number.

It is not a de Polignac number, because 1478478983 - 2² = 1478478979 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1478478973) 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, 18030191 + ... + 18030272.

It is an arithmetic number, because the mean of its divisors is an integer number (378634872).

Almost surely, 2^1478478983 is an apocalyptic number.

1478478983 is a deficient number, since it is larger than the sum of its proper divisors (36060505).

1478478983 is an equidigital number, since it uses as much as digits as its factorization.

1478478983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36060504.

The product of its digits is 10838016, while the sum is 59.

The square root of 1478478983 is about 38450.9945645103. The cubic root of 1478478983 is about 1139.2133135664.

The spelling of 1478478983 in words is "one billion, four hundred seventy-eight million, four hundred seventy-eight thousand, nine hundred eighty-three".