611970 has 16 divisors (see below), whose sum is σ = 1468800. Its totient is φ = 163184.

The previous prime is 611969. The next prime is 611977. The reversal of 611970 is 79116.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 611970.

It is not an unprimeable number, because it can be changed into a prime (611977) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10170 + ... + 10229.

It is an arithmetic number, because the mean of its divisors is an integer number (91800).

2⁶¹¹⁹⁷⁰ is an apocalyptic number.

611970 is an abundant number, since it is smaller than the sum of its proper divisors (856830).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

611970 is a wasteful number, since it uses less digits than its factorization.

611970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20409.

The product of its (nonzero) digits is 378, while the sum is 24.

The square root of 611970 is about 782.2851142646. The cubic root of 611970 is about 84.9004601800.

The spelling of 611970 in words is "six hundred eleven thousand, nine hundred seventy".