610643091 has 16 divisors (see below), whose sum is σ = 819624960. Its totient is φ = 404388000.

The previous prime is 610643083. The next prime is 610643093. The reversal of 610643091 is 190346016.

It is not a de Polignac number, because 610643091 - 2³ = 610643083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (610643093) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 359841 + ... + 361533.

It is an arithmetic number, because the mean of its divisors is an integer number (51226560).

Almost surely, 2^610643091 is an apocalyptic number.

610643091 is a deficient number, since it is larger than the sum of its proper divisors (208981869).

610643091 is a wasteful number, since it uses less digits than its factorization.

610643091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2426.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 610643091 is about 24711.1936377019. The cubic root of 610643091 is about 848.3905373590.

The spelling of 610643091 in words is "six hundred ten million, six hundred forty-three thousand, ninety-one".