1047975765 has 16 divisors (see below), whose sum is σ = 1689564096. Its totient is φ = 554652800.

The previous prime is 1047975751. The next prime is 1047975793. The reversal of 1047975765 is 5675797401.

It is a happy number.

It is not a de Polignac number, because 1047975765 - 2⁷ = 1047975637 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 264696 + ... + 268625.

It is an arithmetic number, because the mean of its divisors is an integer number (105597756).

Almost surely, 2^1047975765 is an apocalyptic number.

1047975765 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1047975765 is a deficient number, since it is larger than the sum of its proper divisors (641588331).

1047975765 is a wasteful number, since it uses less digits than its factorization.

1047975765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533460.

The product of its (nonzero) digits is 1852200, while the sum is 51.

The square root of 1047975765 is about 32372.4537994882. The cubic root of 1047975765 is about 1015.7427858219.

The spelling of 1047975765 in words is "one billion, forty-seven million, nine hundred seventy-five thousand, seven hundred sixty-five".