654736749 has 8 divisors (see below), whose sum is σ = 894274752. Its totient is φ = 425844960.

The previous prime is 654736721. The next prime is 654736769. The reversal of 654736749 is 947637456.

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

It is not a de Polignac number, because 654736749 - 2¹⁵ = 654703981 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (654736769) 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, 2661409 + ... + 2661654.

It is an arithmetic number, because the mean of its divisors is an integer number (111784344).

Almost surely, 2^654736749 is an apocalyptic number.

It is an amenable number.

654736749 is a deficient number, since it is larger than the sum of its proper divisors (239538003).

654736749 is a wasteful number, since it uses less digits than its factorization.

654736749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5323107.

The product of its digits is 3810240, while the sum is 51.

The square root of 654736749 is about 25587.8242334123. The cubic root of 654736749 is about 868.3381978459.

The spelling of 654736749 in words is "six hundred fifty-four million, seven hundred thirty-six thousand, seven hundred forty-nine".