1000797511 has 16 divisors (see below), whose sum is σ = 1207368000. Its totient is φ = 828237984.

The previous prime is 1000797503. The next prime is 1000797527. The reversal of 1000797511 is 1157970001.

It is not a de Polignac number, because 1000797511 - 2³ = 1000797503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000797311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40360 + ... + 60253.

It is an arithmetic number, because the mean of its divisors is an integer number (75460500).

Almost surely, 2^1000797511 is an apocalyptic number.

1000797511 is a deficient number, since it is larger than the sum of its proper divisors (206570489).

1000797511 is an equidigital number, since it uses as much as digits as its factorization.

1000797511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100663 (or 100649 counting only the distinct ones).

The product of its (nonzero) digits is 2205, while the sum is 31.

The square root of 1000797511 is about 31635.3838446762. The cubic root of 1000797511 is about 1000.2657663620.

The spelling of 1000797511 in words is "one billion, seven hundred ninety-seven thousand, five hundred eleven".