654079399 has 2 divisors, whose sum is σ = 654079400. Its totient is φ = 654079398.

The previous prime is 654079379. The next prime is 654079411. The reversal of 654079399 is 993970456.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 654079399 - 2¹¹ = 654077351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (654079319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327039699 + 327039700.

It is an arithmetic number, because the mean of its divisors is an integer number (327039700).

Almost surely, 2^654079399 is an apocalyptic number.

654079399 is a deficient number, since it is larger than the sum of its proper divisors (1).

654079399 is an equidigital number, since it uses as much as digits as its factorization.

654079399 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1837080, while the sum is 52.

The square root of 654079399 is about 25574.9760312693. The cubic root of 654079399 is about 868.0474992058.

The spelling of 654079399 in words is "six hundred fifty-four million, seventy-nine thousand, three hundred ninety-nine".