654643534 has 16 divisors (see below), whose sum is σ = 993052800. Its totient is φ = 323646840.

The previous prime is 654643513. The next prime is 654643547. The reversal of 654643534 is 435346456.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59829 + ... + 69919.

It is an arithmetic number, because the mean of its divisors is an integer number (62065800).

Almost surely, 2^654643534 is an apocalyptic number.

654643534 is a deficient number, since it is larger than the sum of its proper divisors (338409266).

654643534 is a wasteful number, since it uses less digits than its factorization.

654643534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10455.

The product of its digits is 518400, while the sum is 40.

The square root of 654643534 is about 25586.0026967872. The cubic root of 654643534 is about 868.2969873967.

The spelling of 654643534 in words is "six hundred fifty-four million, six hundred forty-three thousand, five hundred thirty-four".