616654 has 4 divisors (see below), whose sum is σ = 924984. Its totient is φ = 308326.

The previous prime is 616643. The next prime is 616669. The reversal of 616654 is 456616.

616654 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 154162 + ... + 154165.

It is an arithmetic number, because the mean of its divisors is an integer number (231246).

2⁶¹⁶⁶⁵⁴ is an apocalyptic number.

616654 is a deficient number, since it is larger than the sum of its proper divisors (308330).

616654 is a wasteful number, since it uses less digits than its factorization.

616654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308329.

The product of its digits is 4320, while the sum is 28.

The square root of 616654 is about 785.2732008671. The cubic root of 616654 is about 85.1165184037.

The spelling of 616654 in words is "six hundred sixteen thousand, six hundred fifty-four".