1947496065 has 32 divisors (see below), whose sum is σ = 3174606336. Its totient is φ = 1019208960.

The previous prime is 1947495983. The next prime is 1947496079. The reversal of 1947496065 is 5606947491.

It is not a de Polignac number, because 1947496065 - 2⁷ = 1947495937 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1947495999 and 1947496017.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 421347 + ... + 425943.

It is an arithmetic number, because the mean of its divisors is an integer number (99206448).

Almost surely, 2^1947496065 is an apocalyptic number.

1947496065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1947496065 is a deficient number, since it is larger than the sum of its proper divisors (1227110271).

1947496065 is a wasteful number, since it uses less digits than its factorization.

1947496065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5129.

The product of its (nonzero) digits is 1632960, while the sum is 51.

The square root of 1947496065 is about 44130.4437435202. The cubic root of 1947496065 is about 1248.7980050704.

The spelling of 1947496065 in words is "one billion, nine hundred forty-seven million, four hundred ninety-six thousand, sixty-five".