1379496217 has 8 divisors (see below), whose sum is σ = 1506802752. Its totient is φ = 1252506000.

The previous prime is 1379496199. The next prime is 1379496227. The reversal of 1379496217 is 7126949731.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1379496217 is a prime.

It is a super-2 number, since 2×1379496217² = 3806019625434622178, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1379496227) 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, 69909 + ... + 87442.

It is an arithmetic number, because the mean of its divisors is an integer number (188350344).

Almost surely, 2^1379496217 is an apocalyptic number.

It is an amenable number.

1379496217 is a deficient number, since it is larger than the sum of its proper divisors (127306535).

1379496217 is a wasteful number, since it uses less digits than its factorization.

1379496217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158159.

The product of its digits is 571536, while the sum is 49.

The square root of 1379496217 is about 37141.5699318163. The cubic root of 1379496217 is about 1113.2007867969.

It can be divided in two parts, 13794 and 96217, that added together give a palindrome (110011).

The spelling of 1379496217 in words is "one billion, three hundred seventy-nine million, four hundred ninety-six thousand, two hundred seventeen".