1072947539 has 8 divisors (see below), whose sum is σ = 1158204960. Its totient is φ = 990907456.

The previous prime is 1072947523. The next prime is 1072947583. The reversal of 1072947539 is 9357492701.

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 1072947539 - 2⁴ = 1072947523 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1072947493 and 1072947502.

It is not an unprimeable number, because it can be changed into a prime (1072947839) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 803642 + ... + 804975.

It is an arithmetic number, because the mean of its divisors is an integer number (144775620).

Almost surely, 2^1072947539 is an apocalyptic number.

1072947539 is a deficient number, since it is larger than the sum of its proper divisors (85257421).

1072947539 is a wasteful number, since it uses less digits than its factorization.

1072947539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1608669.

The product of its (nonzero) digits is 476280, while the sum is 47.

The square root of 1072947539 is about 32755.8779305333. The cubic root of 1072947539 is about 1023.7474413127.

The spelling of 1072947539 in words is "one billion, seventy-two million, nine hundred forty-seven thousand, five hundred thirty-nine".