616672031 has 2 divisors, whose sum is σ = 616672032. Its totient is φ = 616672030.

The previous prime is 616672019. The next prime is 616672051. The reversal of 616672031 is 130276616.

616672031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 616672031 - 2¹⁸ = 616409887 is a prime.

It is a super-2 number, since 2×616672031² = 760568787635329922, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (616672051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308336015 + 308336016.

It is an arithmetic number, because the mean of its divisors is an integer number (308336016).

Almost surely, 2^616672031 is an apocalyptic number.

616672031 is a deficient number, since it is larger than the sum of its proper divisors (1).

616672031 is an equidigital number, since it uses as much as digits as its factorization.

616672031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 616672031 is about 24832.8820518280. The cubic root of 616672031 is about 851.1734799968.

The spelling of 616672031 in words is "six hundred sixteen million, six hundred seventy-two thousand, thirty-one".