845972 has 6 divisors (see below), whose sum is σ = 1480458. Its totient is φ = 422984.

The previous prime is 845969. The next prime is 845981. The reversal of 845972 is 279548.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 781456 + 64516 = 884^2 + 254^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105743 + ... + 105750.

It is an arithmetic number, because the mean of its divisors is an integer number (246743).

2⁸⁴⁵⁹⁷² is an apocalyptic number.

It is an amenable number.

845972 is a deficient number, since it is larger than the sum of its proper divisors (634486).

845972 is a wasteful number, since it uses less digits than its factorization.

845972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211497 (or 211495 counting only the distinct ones).

The product of its digits is 20160, while the sum is 35.

The square root of 845972 is about 919.7673618910. The cubic root of 845972 is about 94.5769555020.

The spelling of 845972 in words is "eight hundred forty-five thousand, nine hundred seventy-two".