1398854829 has 4 divisors (see below), whose sum is σ = 1865139776. Its totient is φ = 932569884.

The previous prime is 1398854827. The next prime is 1398854837. The reversal of 1398854829 is 9284588931.

It is a happy number.

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.

It is not a de Polignac number, because 1398854829 - 2¹ = 1398854827 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1398854827) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 233142469 + ... + 233142474.

It is an arithmetic number, because the mean of its divisors is an integer number (466284944).

Almost surely, 2^1398854829 is an apocalyptic number.

It is an amenable number.

1398854829 is a deficient number, since it is larger than the sum of its proper divisors (466284947).

1398854829 is an equidigital number, since it uses as much as digits as its factorization.

1398854829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466284946.

The product of its digits is 4976640, while the sum is 57.

The square root of 1398854829 is about 37401.2677458933. The cubic root of 1398854829 is about 1118.3838374159.

The spelling of 1398854829 in words is "one billion, three hundred ninety-eight million, eight hundred fifty-four thousand, eight hundred twenty-nine".