1397622914 has 4 divisors (see below), whose sum is σ = 2096434374. Its totient is φ = 698811456.

The previous prime is 1397622901. The next prime is 1397622943. The reversal of 1397622914 is 4192267931.

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

It can be written as a sum of positive squares in only one way, i.e., 1287015625 + 110607289 = 35875^2 + 10517^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 349405727 + ... + 349405730.

Almost surely, 2^1397622914 is an apocalyptic number.

1397622914 is a deficient number, since it is larger than the sum of its proper divisors (698811460).

1397622914 is an equidigital number, since it uses as much as digits as its factorization.

1397622914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 698811459.

The product of its digits is 163296, while the sum is 44.

The square root of 1397622914 is about 37384.7952247969. The cubic root of 1397622914 is about 1118.0554358218.

The spelling of 1397622914 in words is "one billion, three hundred ninety-seven million, six hundred twenty-two thousand, nine hundred fourteen".