616868031 has 32 divisors (see below), whose sum is σ = 901817280. Its totient is φ = 372777984.

The previous prime is 616868029. The next prime is 616868047. The reversal of 616868031 is 130868616.

616868031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 616868031 - 2¹ = 616868029 is a prime.

It is a super-2 number, since 2×616868031² = 761052335339633922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616868011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1107205 + ... + 1107761.

It is an arithmetic number, because the mean of its divisors is an integer number (28181790).

Almost surely, 2^616868031 is an apocalyptic number.

616868031 is a deficient number, since it is larger than the sum of its proper divisors (284949249).

616868031 is a wasteful number, since it uses less digits than its factorization.

616868031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1035.

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 616868031 is about 24836.8281187433. The cubic root of 616868031 is about 851.2636480397.

The spelling of 616868031 in words is "six hundred sixteen million, eight hundred sixty-eight thousand, thirty-one".