1025479 has 16 divisors (see below), whose sum is σ = 1290240. Its totient is φ = 793440.

The previous prime is 1025477. The next prime is 1025483. The reversal of 1025479 is 9745201.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1025479 - 2¹ = 1025477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5274 + ... + 5464.

It is an arithmetic number, because the mean of its divisors is an integer number (80640).

2^1025479 is an apocalyptic number.

1025479 is a deficient number, since it is larger than the sum of its proper divisors (264761).

1025479 is a wasteful number, since it uses less digits than its factorization.

1025479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 1025479 is about 1012.6593701734. The cubic root of 1025479 is about 100.8421872941.

The spelling of 1025479 in words is "one million, twenty-five thousand, four hundred seventy-nine".