616190977 has 4 divisors (see below), whose sum is σ = 616488880. Its totient is φ = 615893076.

The previous prime is 616190941. The next prime is 616191047. The reversal of 616190977 is 779091616.

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 a cyclic number.

It is not a de Polignac number, because 616190977 - 2⁷ = 616190849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (616190777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145827 + ... + 149992.

It is an arithmetic number, because the mean of its divisors is an integer number (154122220).

Almost surely, 2^616190977 is an apocalyptic number.

It is an amenable number.

616190977 is a deficient number, since it is larger than the sum of its proper divisors (297903).

616190977 is a wasteful number, since it uses less digits than its factorization.

616190977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297902.

The product of its (nonzero) digits is 142884, while the sum is 46.

The square root of 616190977 is about 24823.1943351375. The cubic root of 616190977 is about 850.9520943960.

The spelling of 616190977 in words is "six hundred sixteen million, one hundred ninety thousand, nine hundred seventy-seven".