648692 has 24 divisors (see below), whose sum is σ = 1294272. Its totient is φ = 281600.

The previous prime is 648689. The next prime is 648709. The reversal of 648692 is 296846.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 648692.

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, 692 + ... + 1332.

It is an arithmetic number, because the mean of its divisors is an integer number (53928).

2⁶⁴⁸⁶⁹² is an apocalyptic number.

It is an amenable number.

648692 is a deficient number, since it is larger than the sum of its proper divisors (645580).

648692 is a wasteful number, since it uses less digits than its factorization.

648692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679 (or 677 counting only the distinct ones).

The product of its digits is 20736, while the sum is 35.

The square root of 648692 is about 805.4141791650. The cubic root of 648692 is about 86.5657668618.

The spelling of 648692 in words is "six hundred forty-eight thousand, six hundred ninety-two".