616941810 has 48 divisors (see below), whose sum is σ = 1624371840. Its totient is φ = 162433440.

The previous prime is 616941803. The next prime is 616941823. The reversal of 616941810 is 18149616.

It is a happy number.

It is a super-2 number, since 2×616941810² = 761234393852152200, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36276 + ... + 50495.

It is an arithmetic number, because the mean of its divisors is an integer number (33841080).

Almost surely, 2^616941810 is an apocalyptic number.

616941810 is an abundant number, since it is smaller than the sum of its proper divisors (1007430030).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

616941810 is a wasteful number, since it uses less digits than its factorization.

616941810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86863 (or 86860 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 616941810 is about 24838.3133485348. The cubic root of 616941810 is about 851.2975844592.

It can be divided in two parts, 61694 and 1810, that added together give a square (63504 = 252²).

The spelling of 616941810 in words is "six hundred sixteen million, nine hundred forty-one thousand, eight hundred ten".