972615 has 32 divisors (see below), whose sum is σ = 1820160. Its totient is φ = 434304.

The previous prime is 972613. The next prime is 972623. The reversal of 972615 is 516279.

It is not a de Polignac number, because 972615 - 2¹ = 972613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (972611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6117 + ... + 6273.

It is an arithmetic number, because the mean of its divisors is an integer number (56880).

2⁹⁷²⁶¹⁵ is an apocalyptic number.

972615 is a deficient number, since it is larger than the sum of its proper divisors (847545).

972615 is a wasteful number, since it uses less digits than its factorization.

972615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231.

The product of its digits is 3780, while the sum is 30.

The square root of 972615 is about 986.2124517567. The cubic root of 972615 is about 99.0787048858.

The spelling of 972615 in words is "nine hundred seventy-two thousand, six hundred fifteen".