616654073 has 24 divisors (see below), whose sum is σ = 765461664. Its totient is φ = 493584000.

The previous prime is 616654069. The next prime is 616654091. The reversal of 616654073 is 370456616.

It is a happy number.

It is not a de Polignac number, because 616654073 - 2² = 616654069 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (616654273) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 106298 + ... + 111948.

It is an arithmetic number, because the mean of its divisors is an integer number (31894236).

Almost surely, 2^616654073 is an apocalyptic number.

It is an amenable number.

616654073 is a deficient number, since it is larger than the sum of its proper divisors (148807591).

616654073 is a wasteful number, since it uses less digits than its factorization.

616654073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5813 (or 5806 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 38.

The square root of 616654073 is about 24832.5204721551. The cubic root of 616654073 is about 851.1652176245.

The spelling of 616654073 in words is "six hundred sixteen million, six hundred fifty-four thousand, seventy-three".