1478267897 has 8 divisors (see below), whose sum is σ = 1483751040. Its totient is φ = 1472793840.

The previous prime is 1478267881. The next prime is 1478267909. The reversal of 1478267897 is 7987628741.

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 1478267897 - 2⁴ = 1478267881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1478267807) 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, 537947 + ... + 540687.

It is an arithmetic number, because the mean of its divisors is an integer number (185468880).

Almost surely, 2^1478267897 is an apocalyptic number.

It is an amenable number.

1478267897 is a deficient number, since it is larger than the sum of its proper divisors (5483143).

1478267897 is a wasteful number, since it uses less digits than its factorization.

1478267897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4543.

The product of its digits is 9483264, while the sum is 59.

The square root of 1478267897 is about 38448.2495960479. The cubic root of 1478267897 is about 1139.1590949111.

The spelling of 1478267897 in words is "one billion, four hundred seventy-eight million, two hundred sixty-seven thousand, eight hundred ninety-seven".