684933153 has 4 divisors (see below), whose sum is σ = 913244208. Its totient is φ = 456622100.

The previous prime is 684933149. The next prime is 684933157. The reversal of 684933153 is 351339486.

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 an interprime number because it is at equal distance from previous prime (684933149) and next prime (684933157).

It is a cyclic number.

It is not a de Polignac number, because 684933153 - 2² = 684933149 is a prime.

It is not an unprimeable number, because it can be changed into a prime (684933157) 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, 114155523 + ... + 114155528.

It is an arithmetic number, because the mean of its divisors is an integer number (228311052).

Almost surely, 2^684933153 is an apocalyptic number.

It is an amenable number.

684933153 is a deficient number, since it is larger than the sum of its proper divisors (228311055).

684933153 is a wasteful number, since it uses less digits than its factorization.

684933153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228311054.

The product of its digits is 233280, while the sum is 42.

The square root of 684933153 is about 26171.2275791565. The cubic root of 684933153 is about 881.4873062239.

The spelling of 684933153 in words is "six hundred eighty-four million, nine hundred thirty-three thousand, one hundred fifty-three".