1379950287 has 4 divisors (see below), whose sum is σ = 1839933720. Its totient is φ = 919966856.

The previous prime is 1379950283. The next prime is 1379950289. The reversal of 1379950287 is 7820599731.

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 1379950287 - 2² = 1379950283 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1379950283) 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, 229991712 + ... + 229991717.

It is an arithmetic number, because the mean of its divisors is an integer number (459983430).

Almost surely, 2^1379950287 is an apocalyptic number.

1379950287 is a deficient number, since it is larger than the sum of its proper divisors (459983433).

1379950287 is an equidigital number, since it uses as much as digits as its factorization.

1379950287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459983432.

The product of its (nonzero) digits is 952560, while the sum is 51.

The square root of 1379950287 is about 37147.6821214999. The cubic root of 1379950287 is about 1113.3229124506.

The spelling of 1379950287 in words is "one billion, three hundred seventy-nine million, nine hundred fifty thousand, two hundred eighty-seven".