1047397 has 16 divisors (see below), whose sum is σ = 1225728. Its totient is φ = 887040.

The previous prime is 1047391. The next prime is 1047419. The reversal of 1047397 is 7937401.

It is a cyclic number.

It is not a de Polignac number, because 1047397 - 2¹¹ = 1045349 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

1047397 is a lucky number.

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1047391) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9213 + ... + 9325.

It is an arithmetic number, because the mean of its divisors is an integer number (76608).

2^1047397 is an apocalyptic number.

It is an amenable number.

1047397 is a deficient number, since it is larger than the sum of its proper divisors (178331).

1047397 is a wasteful number, since it uses less digits than its factorization.

1047397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180.

The product of its (nonzero) digits is 5292, while the sum is 31.

The square root of 1047397 is about 1023.4241544931. The cubic root of 1047397 is about 101.5555763485. Note that the first 4 decimals are identical.

It can be divided in two parts, 1047 and 397, that added together give a square (1444 = 38²).

The spelling of 1047397 in words is "one million, forty-seven thousand, three hundred ninety-seven".