616854577 has 4 divisors (see below), whose sum is σ = 616916080. Its totient is φ = 616793076.

The previous prime is 616854559. The next prime is 616854583. The reversal of 616854577 is 775458616.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 616854577 - 2⁷ = 616854449 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 616854577.

It is not an unprimeable number, because it can be changed into a prime (616854547) 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, 11823 + ... + 37060.

It is an arithmetic number, because the mean of its divisors is an integer number (154229020).

Almost surely, 2^616854577 is an apocalyptic number.

It is an amenable number.

616854577 is a deficient number, since it is larger than the sum of its proper divisors (61503).

616854577 is a wasteful number, since it uses less digits than its factorization.

616854577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61502.

The product of its digits is 1411200, while the sum is 49.

The square root of 616854577 is about 24836.5572694768. The cubic root of 616854577 is about 851.2574592582.

The spelling of 616854577 in words is "six hundred sixteen million, eight hundred fifty-four thousand, five hundred seventy-seven".