1379978233 has 8 divisors (see below), whose sum is σ = 1447431552. Its totient is φ = 1314112176.

The previous prime is 1379978221. The next prime is 1379978273. The reversal of 1379978233 is 3328799731.

It is a happy number.

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 1379978233 - 2⁹ = 1379977721 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1379978273) 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, 395035 + ... + 398512.

It is an arithmetic number, because the mean of its divisors is an integer number (180928944).

Almost surely, 2^1379978233 is an apocalyptic number.

It is an amenable number.

1379978233 is a deficient number, since it is larger than the sum of its proper divisors (67453319).

1379978233 is an equidigital number, since it uses as much as digits as its factorization.

1379978233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 793631.

The product of its digits is 1714608, while the sum is 52.

The square root of 1379978233 is about 37148.0582668866. The cubic root of 1379978233 is about 1113.3304278692.

The spelling of 1379978233 in words is "one billion, three hundred seventy-nine million, nine hundred seventy-eight thousand, two hundred thirty-three".