661034 has 8 divisors (see below), whose sum is σ = 1081728. Its totient is φ = 300460.

The previous prime is 661027. The next prime is 661049. The reversal of 661034 is 430166.

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

It is a junction number, because it is equal to n+sod(n) for n = 660997 and 661015.

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, 15002 + ... + 15045.

It is an arithmetic number, because the mean of its divisors is an integer number (135216).

2⁶⁶¹⁰³⁴ is an apocalyptic number.

661034 is a deficient number, since it is larger than the sum of its proper divisors (420694).

661034 is a wasteful number, since it uses less digits than its factorization.

661034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30060.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 661034 is about 813.0399744170. The cubic root of 661034 is about 87.1113209238. Note that the first 3 decimals are identical.

The spelling of 661034 in words is "six hundred sixty-one thousand, thirty-four".