1009873797 has 12 divisors (see below), whose sum is σ = 1430364576. Its totient is φ = 633645760.

The previous prime is 1009873783. The next prime is 1009873841. The reversal of 1009873797 is 7973789001.

It is a happy number.

1009873797 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1009873797 - 2¹¹ = 1009871749 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1009874797) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 581529 + ... + 583262.

It is an arithmetic number, because the mean of its divisors is an integer number (119197048).

Almost surely, 2^1009873797 is an apocalyptic number.

1009873797 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1009873797 is a deficient number, since it is larger than the sum of its proper divisors (420490779).

1009873797 is a wasteful number, since it uses less digits than its factorization.

1009873797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1164828 (or 1164811 counting only the distinct ones).

The product of its (nonzero) digits is 666792, while the sum is 51.

The square root of 1009873797 is about 31778.5115604869. The cubic root of 1009873797 is about 1003.2804922693.

The spelling of 1009873797 in words is "one billion, nine million, eight hundred seventy-three thousand, seven hundred ninety-seven".