1049521797 has 12 divisors (see below), whose sum is σ = 1548231360. Its totient is φ = 684794088.

The previous prime is 1049521783. The next prime is 1049521799. The reversal of 1049521797 is 7971259401.

1049521797 is a `hidden beast` number, since 10 + 49 + 521 + 79 + 7 = 666.

It is not a de Polignac number, because 1049521797 - 2⁸ = 1049521541 is a prime.

It is a super-2 number, since 2×1049521797² = 2202992004756218418, which contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1049521799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1240147 + ... + 1240992.

It is an arithmetic number, because the mean of its divisors is an integer number (129019280).

Almost surely, 2^1049521797 is an apocalyptic number.

It is an amenable number.

1049521797 is a deficient number, since it is larger than the sum of its proper divisors (498709563).

1049521797 is a wasteful number, since it uses less digits than its factorization.

1049521797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2481192 (or 2481189 counting only the distinct ones).

The product of its (nonzero) digits is 158760, while the sum is 45.

The square root of 1049521797 is about 32396.3238192237. The cubic root of 1049521797 is about 1016.2420337697.

The spelling of 1049521797 in words is "one billion, forty-nine million, five hundred twenty-one thousand, seven hundred ninety-seven".