611972 has 6 divisors (see below), whose sum is σ = 1070958. Its totient is φ = 305984.

The previous prime is 611969. The next prime is 611977. The reversal of 611972 is 279116.

It can be written as a sum of positive squares in only one way, i.e., 470596 + 141376 = 686^2 + 376^2 .

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 as a sum of consecutive naturals, namely, 76493 + ... + 76500.

It is an arithmetic number, because the mean of its divisors is an integer number (178493).

2⁶¹¹⁹⁷² is an apocalyptic number.

It is an amenable number.

611972 is a deficient number, since it is larger than the sum of its proper divisors (458986).

611972 is a wasteful number, since it uses less digits than its factorization.

611972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152997 (or 152995 counting only the distinct ones).

The product of its digits is 756, while the sum is 26.

The square root of 611972 is about 782.2863925699. The cubic root of 611972 is about 84.9005526686.

The spelling of 611972 in words is "six hundred eleven thousand, nine hundred seventy-two".