654692947 has 4 divisors (see below), whose sum is σ = 656255880. Its totient is φ = 653130016.

The previous prime is 654692897. The next prime is 654692963. The reversal of 654692947 is 749296456.

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

It is a cyclic number.

It is not a de Polignac number, because 654692947 - 2¹⁹ = 654168659 is a prime.

It is a super-3 number, since 3×654692947³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 654692894 and 654692903.

It is not an unprimeable number, because it can be changed into a prime (654692347) 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, 780838 + ... + 781675.

It is an arithmetic number, because the mean of its divisors is an integer number (164063970).

Almost surely, 2^654692947 is an apocalyptic number.

654692947 is a deficient number, since it is larger than the sum of its proper divisors (1562933).

654692947 is a wasteful number, since it uses less digits than its factorization.

654692947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1562932.

The product of its digits is 3265920, while the sum is 52.

The square root of 654692947 is about 25586.9683041974. The cubic root of 654692947 is about 868.3188334230.

The spelling of 654692947 in words is "six hundred fifty-four million, six hundred ninety-two thousand, nine hundred forty-seven".