1072566477 has 12 divisors (see below), whose sum is σ = 1574661244. Its totient is φ = 703321920.

The previous prime is 1072566457. The next prime is 1072566503. The reversal of 1072566477 is 7746652701.

1072566477 is a `hidden beast` number, since 10 + 7 + 2 + 566 + 4 + 77 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 428117481 + 644448996 = 20691^2 + 25386^2 .

It is not a de Polignac number, because 1072566477 - 2⁸ = 1072566221 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 (1072566457) 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, 976288 + ... + 977385.

Almost surely, 2^1072566477 is an apocalyptic number.

It is an amenable number.

1072566477 is a deficient number, since it is larger than the sum of its proper divisors (502094767).

1072566477 is a wasteful number, since it uses less digits than its factorization.

1072566477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1953740 (or 1953737 counting only the distinct ones).

The product of its (nonzero) digits is 493920, while the sum is 45.

The square root of 1072566477 is about 32750.0607175010. The cubic root of 1072566477 is about 1023.6262308386.

The spelling of 1072566477 in words is "one billion, seventy-two million, five hundred sixty-six thousand, four hundred seventy-seven".