610993791 has 6 divisors (see below), whose sum is σ = 882546600. Its totient is φ = 407329188.

The previous prime is 610993759. The next prime is 610993807. The reversal of 610993791 is 197399016.

It is not a de Polignac number, because 610993791 - 2⁵ = 610993759 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (610993741) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 33944091 + ... + 33944108.

It is an arithmetic number, because the mean of its divisors is an integer number (147091100).

Almost surely, 2^610993791 is an apocalyptic number.

610993791 is a deficient number, since it is larger than the sum of its proper divisors (271552809).

610993791 is a wasteful number, since it uses less digits than its factorization.

610993791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67888205 (or 67888202 counting only the distinct ones).

The product of its (nonzero) digits is 91854, while the sum is 45.

The square root of 610993791 is about 24718.2885936709. The cubic root of 610993791 is about 848.5529200587.

The spelling of 610993791 in words is "six hundred ten million, nine hundred ninety-three thousand, seven hundred ninety-one".