1298629 has 6 divisors (see below), whose sum is σ = 1324050. Its totient is φ = 1273680.

The previous prime is 1298617. The next prime is 1298641. The reversal of 1298629 is 9268921.

It is an interprime number because it is at equal distance from previous prime (1298617) and next prime (1298641).

It can be written as a sum of positive squares in 3 ways, for example, as 10404 + 1288225 = 102^2 + 1135^2 .

It is not a de Polignac number, because 1298629 - 2⁹ = 1298117 is a prime.

It is a Duffinian number.

1298629 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1298699) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3547 + ... + 3895.

It is an arithmetic number, because the mean of its divisors is an integer number (220675).

2^1298629 is an apocalyptic number.

It is an amenable number.

1298629 is a deficient number, since it is larger than the sum of its proper divisors (25421).

1298629 is an frugal number, since it uses more digits than its factorization.

1298629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471 (or 410 counting only the distinct ones).

The product of its digits is 15552, while the sum is 37.

The square root of 1298629 is about 1139.5740432284. The cubic root of 1298629 is about 109.1009081533.

The spelling of 1298629 in words is "one million, two hundred ninety-eight thousand, six hundred twenty-nine".