610949986 has 8 divisors (see below), whose sum is σ = 916618284. Its totient is φ = 305410560.

The previous prime is 610949971. The next prime is 610950001. The reversal of 610949986 is 689949016.

It is an interprime number because it is at equal distance from previous prime (610949971) and next prime (610950001).

It can be written as a sum of positive squares in 2 ways, for example, as 560979225 + 49970761 = 23685^2 + 7069^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19335 + ... + 39946.

Almost surely, 2^610949986 is an apocalyptic number.

610949986 is a deficient number, since it is larger than the sum of its proper divisors (305668298).

610949986 is a wasteful number, since it uses less digits than its factorization.

610949986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64436.

The product of its (nonzero) digits is 839808, while the sum is 52.

The square root of 610949986 is about 24717.4024929805. The cubic root of 610949986 is about 848.5326406661.

The spelling of 610949986 in words is "six hundred ten million, nine hundred forty-nine thousand, nine hundred eighty-six".