1297872622 has 8 divisors (see below), whose sum is σ = 1947641976. Its totient is φ = 648658632.

The previous prime is 1297872601. The next prime is 1297872637. The reversal of 1297872622 is 2262787921.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 132948 + ... + 142375.

It is an arithmetic number, because the mean of its divisors is an integer number (243455247).

Almost surely, 2^1297872622 is an apocalyptic number.

1297872622 is a deficient number, since it is larger than the sum of its proper divisors (649769354).

1297872622 is a wasteful number, since it uses less digits than its factorization.

1297872622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277682.

The product of its digits is 338688, while the sum is 46.

The square root of 1297872622 is about 36025.9992505413. Note that the first 3 decimals coincide. The cubic root of 1297872622 is about 1090.7972233526.

The spelling of 1297872622 in words is "one billion, two hundred ninety-seven million, eight hundred seventy-two thousand, six hundred twenty-two".