1947734097 has 16 divisors (see below), whose sum is σ = 2688579840. Its totient is φ = 1253446272.

The previous prime is 1947734059. The next prime is 1947734119. The reversal of 1947734097 is 7904377491.

It is not a de Polignac number, because 1947734097 - 2¹¹ = 1947732049 is a prime.

It is a super-2 number, since 2×1947734097² = 7587336225232810818, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1947738097) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84322 + ... + 104907.

It is an arithmetic number, because the mean of its divisors is an integer number (168036240).

Almost surely, 2^1947734097 is an apocalyptic number.

It is an amenable number.

1947734097 is a deficient number, since it is larger than the sum of its proper divisors (740845743).

1947734097 is a wasteful number, since it uses less digits than its factorization.

1947734097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189352.

The product of its (nonzero) digits is 1333584, while the sum is 51.

The square root of 1947734097 is about 44133.1405748560. The cubic root of 1947734097 is about 1248.8488809587.

The spelling of 1947734097 in words is "one billion, nine hundred forty-seven million, seven hundred thirty-four thousand, ninety-seven".