851972 has 36 divisors (see below), whose sum is σ = 1753584. Its totient is φ = 359040.

The previous prime is 851971. The next prime is 852011. The reversal of 851972 is 279158.

It is a nialpdrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (851971) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12683 + ... + 12749.

2⁸⁵¹⁹⁷² is an apocalyptic number.

It is an amenable number.

851972 is an abundant number, since it is smaller than the sum of its proper divisors (901612).

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

851972 is a wasteful number, since it uses less digits than its factorization.

851972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116 (or 97 counting only the distinct ones).

The product of its digits is 5040, while the sum is 32.

The square root of 851972 is about 923.0232933139. The cubic root of 851972 is about 94.8000225510.

The spelling of 851972 in words is "eight hundred fifty-one thousand, nine hundred seventy-two".