1072047 has 4 divisors (see below), whose sum is σ = 1429400. Its totient is φ = 714696.

The previous prime is 1072039. The next prime is 1072103. The reversal of 1072047 is 7402701.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1072047 - 2³ = 1072039 is a prime.

It is a super-2 number, since 2×1072047² = 2298569540418, which contains 22 as substring.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1072147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 178672 + ... + 178677.

It is an arithmetic number, because the mean of its divisors is an integer number (357350).

2^1072047 is an apocalyptic number.

1072047 is a deficient number, since it is larger than the sum of its proper divisors (357353).

1072047 is an equidigital number, since it uses as much as digits as its factorization.

1072047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357352.

The product of its (nonzero) digits is 392, while the sum is 21.

The square root of 1072047 is about 1035.3970253000. The cubic root of 1072047 is about 102.3460946241.

Adding to 1072047 its reverse (7402701), we get a palindrome (8474748).

The spelling of 1072047 in words is "one million, seventy-two thousand, forty-seven".