862049253 has 8 divisors (see below), whose sum is σ = 1237814368. Its totient is φ = 530491824.

The previous prime is 862049249. The next prime is 862049261. The reversal of 862049253 is 352940268.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 862049253 - 2² = 862049249 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 22103827 = 862049253 / (8 + 6 + 2 + 0 + 4 + 9 + 2 + 5 + 3).

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 (862049233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11051875 + ... + 11051952.

It is an arithmetic number, because the mean of its divisors is an integer number (154726796).

Almost surely, 2^862049253 is an apocalyptic number.

It is an amenable number.

862049253 is a deficient number, since it is larger than the sum of its proper divisors (375765115).

862049253 is a wasteful number, since it uses less digits than its factorization.

862049253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22103843.

The product of its (nonzero) digits is 103680, while the sum is 39.

The square root of 862049253 is about 29360.6752817438. The cubic root of 862049253 is about 951.7232813449.

The spelling of 862049253 in words is "eight hundred sixty-two million, forty-nine thousand, two hundred fifty-three".