1020471769 has 8 divisors (see below), whose sum is σ = 1029309920. Its totient is φ = 1011665376.

The previous prime is 1020471761. The next prime is 1020471787. The reversal of 1020471769 is 9671740201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1020471769 - 2³ = 1020471761 is a prime.

It is a super-2 number, since 2×1020471769² = 2082725262651978722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1020471761) 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 7 ways as a sum of consecutive naturals, for example, 59014 + ... + 74320.

It is an arithmetic number, because the mean of its divisors is an integer number (128663740).

Almost surely, 2^1020471769 is an apocalyptic number.

It is an amenable number.

1020471769 is a deficient number, since it is larger than the sum of its proper divisors (8838151).

1020471769 is a wasteful number, since it uses less digits than its factorization.

1020471769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15879.

The product of its (nonzero) digits is 21168, while the sum is 37.

The square root of 1020471769 is about 31944.8238217086. The cubic root of 1020471769 is about 1006.7778795576. Note that the first 3 decimals are identical.

The spelling of 1020471769 in words is "one billion, twenty million, four hundred seventy-one thousand, seven hundred sixty-nine".