654375439 has 4 divisors (see below), whose sum is σ = 654428880. Its totient is φ = 654322000.

The previous prime is 654375433. The next prime is 654375503. The reversal of 654375439 is 934573456.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 654375439 - 2¹⁵ = 654342671 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 (654375433) 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, 1782 + ... + 36220.

It is an arithmetic number, because the mean of its divisors is an integer number (163607220).

Almost surely, 2^654375439 is an apocalyptic number.

654375439 is a deficient number, since it is larger than the sum of its proper divisors (53441).

654375439 is a wasteful number, since it uses less digits than its factorization.

654375439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53440.

The product of its digits is 1360800, while the sum is 46.

The square root of 654375439 is about 25580.7630652410. The cubic root of 654375439 is about 868.1784405064.

It can be divided in two parts, 65437 and 5439, that added together give a triangular number (70876 = T₃₇₆).

The spelling of 654375439 in words is "six hundred fifty-four million, three hundred seventy-five thousand, four hundred thirty-nine".