1025629 has 4 divisors (see below), whose sum is σ = 1118880. Its totient is φ = 932380.

The previous prime is 1025623. The next prime is 1025641. The reversal of 1025629 is 9265201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9265201 = 11 ⋅842291.

It is a cyclic number.

It is not a de Polignac number, because 1025629 - 2³ = 1025621 is a prime.

It is an Ulam 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 (1025621) 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 3 ways as a sum of consecutive naturals, for example, 46609 + ... + 46630.

It is an arithmetic number, because the mean of its divisors is an integer number (279720).

2^1025629 is an apocalyptic number.

It is an amenable number.

1025629 is a deficient number, since it is larger than the sum of its proper divisors (93251).

1025629 is an equidigital number, since it uses as much as digits as its factorization.

1025629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93250.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 1025629 is about 1012.7334298817. The cubic root of 1025629 is about 100.8471038877.

The spelling of 1025629 in words is "one million, twenty-five thousand, six hundred twenty-nine".