616220297 has 16 divisors (see below), whose sum is σ = 770522112. Its totient is φ = 478767120.

The previous prime is 616220287. The next prime is 616220321. The reversal of 616220297 is 792022616.

It is a cyclic number.

It is not a de Polignac number, because 616220297 - 2⁸ = 616220041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (616220207) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15188 + ... + 38250.

It is an arithmetic number, because the mean of its divisors is an integer number (48157632).

Almost surely, 2^616220297 is an apocalyptic number.

It is an amenable number.

616220297 is a deficient number, since it is larger than the sum of its proper divisors (154301815).

616220297 is a wasteful number, since it uses less digits than its factorization.

616220297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23428.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 616220297 is about 24823.7849048045. The cubic root of 616220297 is about 850.9655910340.

The spelling of 616220297 in words is "six hundred sixteen million, two hundred twenty thousand, two hundred ninety-seven".