6653739 has 8 divisors (see below), whose sum is σ = 9257472. Its totient is φ = 4242920.

The previous prime is 6653723. The next prime is 6653761. The reversal of 6653739 is 9373566.

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

It is a cyclic number.

It is not a de Polignac number, because 6653739 - 2⁴ = 6653723 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6653697 and 6653706.

It is not an unprimeable number, because it can be changed into a prime (6653039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48147 + ... + 48284.

It is an arithmetic number, because the mean of its divisors is an integer number (1157184).

Almost surely, 2^6653739 is an apocalyptic number.

6653739 is a gapful number since it is divisible by the number (69) formed by its first and last digit.

6653739 is a deficient number, since it is larger than the sum of its proper divisors (2603733).

6653739 is a wasteful number, since it uses less digits than its factorization.

6653739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96457.

The product of its digits is 102060, while the sum is 39.

The square root of 6653739 is about 2579.4842507757. The cubic root of 6653739 is about 188.0854730552.

The spelling of 6653739 in words is "six million, six hundred fifty-three thousand, seven hundred thirty-nine".