616707601 has 4 divisors (see below), whose sum is σ = 633375412. Its totient is φ = 600039792.

The previous prime is 616707599. The next prime is 616707617. The reversal of 616707601 is 106707616.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 508547601 + 108160000 = 22551^2 + 10400^2 .

It is a cyclic number.

It is not a de Polignac number, because 616707601 - 2¹ = 616707599 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (616707631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8333850 + ... + 8333923.

It is an arithmetic number, because the mean of its divisors is an integer number (158343853).

Almost surely, 2^616707601 is an apocalyptic number.

It is an amenable number.

616707601 is a deficient number, since it is larger than the sum of its proper divisors (16667811).

616707601 is a wasteful number, since it uses less digits than its factorization.

616707601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16667810.

The product of its (nonzero) digits is 10584, while the sum is 34.

The square root of 616707601 is about 24833.5982290122. The cubic root of 616707601 is about 851.1898450753.

The spelling of 616707601 in words is "six hundred sixteen million, seven hundred seven thousand, six hundred one".