1029641 has 8 divisors (see below), whose sum is σ = 1088640. Its totient is φ = 971872.

The previous prime is 1029617. The next prime is 1029643. The reversal of 1029641 is 1469201.

It is a happy number.

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 1029641 - 2⁶ = 1029577 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1029643) 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, 1796 + ... + 2298.

It is an arithmetic number, because the mean of its divisors is an integer number (136080).

2^1029641 is an apocalyptic number.

It is an amenable number.

1029641 is a deficient number, since it is larger than the sum of its proper divisors (58999).

1029641 is an equidigital number, since it uses as much as digits as its factorization.

1029641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 615.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 1029641 is about 1014.7122744897. The cubic root of 1029641 is about 100.9784288802.

The spelling of 1029641 in words is "one million, twenty-nine thousand, six hundred forty-one".