1208870947 has 8 divisors (see below), whose sum is σ = 1248468992. Its totient is φ = 1169310600.

The previous prime is 1208870917. The next prime is 1208870959. The reversal of 1208870947 is 7490788021.

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-1208870947 is a prime.

It is a super-2 number, since 2×1208870947² = 2922737933001353618, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1208870897 and 1208870906.

It is not an unprimeable number, because it can be changed into a prime (1208870917) 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, 65278 + ... + 81724.

It is an arithmetic number, because the mean of its divisors is an integer number (156058624).

Almost surely, 2^1208870947 is an apocalyptic number.

1208870947 is a deficient number, since it is larger than the sum of its proper divisors (39598045).

1208870947 is a wasteful number, since it uses less digits than its factorization.

1208870947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18849.

The product of its (nonzero) digits is 225792, while the sum is 46.

The square root of 1208870947 is about 34768.8214784453. The cubic root of 1208870947 is about 1065.2706952217.

The spelling of 1208870947 in words is "one billion, two hundred eight million, eight hundred seventy thousand, nine hundred forty-seven".