613781396 has 48 divisors (see below), whose sum is σ = 1202261760. Its totient is φ = 272471040.

The previous prime is 613781387. The next prime is 613781417. The reversal of 613781396 is 693187316.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 349256 + ... + 351008.

It is an arithmetic number, because the mean of its divisors is an integer number (25047120).

Almost surely, 2^613781396 is an apocalyptic number.

It is an amenable number.

613781396 is a deficient number, since it is larger than the sum of its proper divisors (588480364).

613781396 is a wasteful number, since it uses less digits than its factorization.

613781396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2064 (or 2062 counting only the distinct ones).

The product of its digits is 163296, while the sum is 44.

The square root of 613781396 is about 24774.6119243067. The cubic root of 613781396 is about 849.8414449355.

The spelling of 613781396 in words is "six hundred thirteen million, seven hundred eighty-one thousand, three hundred ninety-six".