1064391 has 8 divisors (see below), whose sum is σ = 1427184. Its totient is φ = 705600.

The previous prime is 1064383. The next prime is 1064407. The reversal of 1064391 is 1934601.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1064391 - 2³ = 1064383 is a prime.

It is a super-2 number, since 2×1064391² = 2265856401762, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1064311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 310 + ... + 1491.

It is an arithmetic number, because the mean of its divisors is an integer number (178398).

2^1064391 is an apocalyptic number.

1064391 is the 653-rd centered pentagonal number.

1064391 is a deficient number, since it is larger than the sum of its proper divisors (362793).

1064391 is a wasteful number, since it uses less digits than its factorization.

1064391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2001.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 1064391 is about 1031.6932683700. The cubic root of 1064391 is about 102.1018782172.

Adding to 1064391 its reverse (1934601), we get a palindrome (2998992).

The spelling of 1064391 in words is "one million, sixty-four thousand, three hundred ninety-one".