616465 has 8 divisors (see below), whose sum is σ = 745920. Its totient is φ = 489072.

The previous prime is 616463. The next prime is 616481. The reversal of 616465 is 564616.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 616465 - 2¹ = 616463 is a prime.

616465 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (616463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 252 + ... + 1138.

It is an arithmetic number, because the mean of its divisors is an integer number (93240).

2⁶¹⁶⁴⁶⁵ is an apocalyptic number.

It is an amenable number.

616465 is a deficient number, since it is larger than the sum of its proper divisors (129455).

616465 is a wasteful number, since it uses less digits than its factorization.

616465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1031.

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

The square root of 616465 is about 785.1528513608. The cubic root of 616465 is about 85.1078216490.

It can be divided in two parts, 616 and 465, that added together give a triangular number (1081 = T₄₆).

The spelling of 616465 in words is "six hundred sixteen thousand, four hundred sixty-five".