616827245 has 18 divisors (see below), whose sum is σ = 768603498. Its totient is φ = 475201888.

The previous prime is 616827221. The next prime is 616827251. The reversal of 616827245 is 542728616.

It can be written as a sum of positive squares in 3 ways, for example, as 70997476 + 545829769 = 8426^2 + 23363^2 .

It is not a de Polignac number, because 616827245 - 2²⁸ = 348391789 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1610324 + ... + 1610706.

Almost surely, 2^616827245 is an apocalyptic number.

It is an amenable number.

616827245 is a deficient number, since it is larger than the sum of its proper divisors (151776253).

616827245 is an frugal number, since it uses more digits than its factorization.

616827245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 829 (or 417 counting only the distinct ones).

The product of its digits is 161280, while the sum is 41.

The square root of 616827245 is about 24836.0070260902. The cubic root of 616827245 is about 851.2448863799.

The spelling of 616827245 in words is "six hundred sixteen million, eight hundred twenty-seven thousand, two hundred forty-five".