1002947193 has 6 divisors (see below), whose sum is σ = 1448701514. Its totient is φ = 668631456.

The previous prime is 1002947173. The next prime is 1002947201. The reversal of 1002947193 is 3917492001.

It can be written as a sum of positive squares in only one way, i.e., 886371984 + 116575209 = 29772^2 + 10797^2 .

It is not a de Polignac number, because 1002947193 - 2²¹ = 1000850041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1002947173) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 55719280 + ... + 55719297.

Almost surely, 2^1002947193 is an apocalyptic number.

It is an amenable number.

1002947193 is a deficient number, since it is larger than the sum of its proper divisors (445754321).

1002947193 is a wasteful number, since it uses less digits than its factorization.

1002947193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111438583 (or 111438580 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 1002947193 is about 31669.3415308876. The cubic root of 1002947193 is about 1000.9814341386.

The spelling of 1002947193 in words is "one billion, two million, nine hundred forty-seven thousand, one hundred ninety-three".