972999 has 8 divisors (see below), whose sum is σ = 1441520. Its totient is φ = 648648.

The previous prime is 972991. The next prime is 973001. The reversal of 972999 is 999279.

It is not a de Polignac number, because 972999 - 2³ = 972991 is a prime.

It is a Duffinian number.

972999 is a modest number, since divided by 999 gives 972 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (972991) 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, 17992 + ... + 18045.

It is an arithmetic number, because the mean of its divisors is an integer number (180190).

2⁹⁷²⁹⁹⁹ is an apocalyptic number.

972999 is a deficient number, since it is larger than the sum of its proper divisors (468521).

972999 is a wasteful number, since it uses less digits than its factorization.

972999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36046 (or 36040 counting only the distinct ones).

The product of its digits is 91854, while the sum is 45.

The square root of 972999 is about 986.4071167626. The cubic root of 972999 is about 99.0917423216.

The spelling of 972999 in words is "nine hundred seventy-two thousand, nine hundred ninety-nine".