654980086 has 4 divisors (see below), whose sum is σ = 982470132. Its totient is φ = 327490042.

The previous prime is 654980077. The next prime is 654980089. The reversal of 654980086 is 680089456.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (654980089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163745020 + ... + 163745023.

It is an arithmetic number, because the mean of its divisors is an integer number (245617533).

Almost surely, 2^654980086 is an apocalyptic number.

654980086 is a deficient number, since it is larger than the sum of its proper divisors (327490046).

654980086 is a wasteful number, since it uses less digits than its factorization.

654980086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327490045.

The product of its (nonzero) digits is 414720, while the sum is 46.

The square root of 654980086 is about 25592.5787289988. The cubic root of 654980086 is about 868.4457589591.

The spelling of 654980086 in words is "six hundred fifty-four million, nine hundred eighty thousand, eighty-six".