616953 has 4 divisors (see below), whose sum is σ = 822608. Its totient is φ = 411300.

The previous prime is 616951. The next prime is 616961. The reversal of 616953 is 359616.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 616953 - 2¹ = 616951 is a prime.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 616953.

It is not an unprimeable number, because it can be changed into a prime (616951) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102823 + ... + 102828.

It is an arithmetic number, because the mean of its divisors is an integer number (205652).

2⁶¹⁶⁹⁵³ is an apocalyptic number.

It is an amenable number.

616953 is a deficient number, since it is larger than the sum of its proper divisors (205655).

616953 is a wasteful number, since it uses less digits than its factorization.

616953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205654.

The product of its digits is 4860, while the sum is 30.

The square root of 616953 is about 785.4635573978. The cubic root of 616953 is about 85.1302731332.

The spelling of 616953 in words is "six hundred sixteen thousand, nine hundred fifty-three".