6920749 has 8 divisors (see below), whose sum is σ = 7580160. Its totient is φ = 6266400.

The previous prime is 6920741. The next prime is 6920761. The reversal of 6920749 is 9470296.

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 6920749 - 2³ = 6920741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6920741) 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, 1972 + ... + 4210.

It is an arithmetic number, because the mean of its divisors is an integer number (947520).

Almost surely, 2^6920749 is an apocalyptic number.

It is an amenable number.

6920749 is a deficient number, since it is larger than the sum of its proper divisors (659411).

6920749 is a wasteful number, since it uses less digits than its factorization.

6920749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2531.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 6920749 is about 2630.7316472799. The cubic root of 6920749 is about 190.5684637141.

The spelling of 6920749 in words is "six million, nine hundred twenty thousand, seven hundred forty-nine".