684900741 has 16 divisors (see below), whose sum is σ = 1060769408. Its totient is φ = 384955200.

The previous prime is 684900721. The next prime is 684900773. The reversal of 684900741 is 147009486.

It is a happy number.

It is not a de Polignac number, because 684900741 - 2¹⁰ = 684899717 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 684900741.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (684900721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 266050 + ... + 268611.

It is an arithmetic number, because the mean of its divisors is an integer number (66298088).

Almost surely, 2^684900741 is an apocalyptic number.

684900741 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

It is an amenable number.

684900741 is a deficient number, since it is larger than the sum of its proper divisors (375868667).

684900741 is a wasteful number, since it uses less digits than its factorization.

684900741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534732.

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 684900741 is about 26170.6083421842. The cubic root of 684900741 is about 881.4734015982.

The spelling of 684900741 in words is "six hundred eighty-four million, nine hundred thousand, seven hundred forty-one".