1972465 has 8 divisors (see below), whose sum is σ = 2582208. Its totient is φ = 1434480.

The previous prime is 1972441. The next prime is 1972471. The reversal of 1972465 is 5642791.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1972465 - 2¹¹ = 1970417 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1972465.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17877 + ... + 17986.

It is an arithmetic number, because the mean of its divisors is an integer number (322776).

2^1972465 is an apocalyptic number.

It is an amenable number.

1972465 is a deficient number, since it is larger than the sum of its proper divisors (609743).

1972465 is a wasteful number, since it uses less digits than its factorization.

1972465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35879.

The product of its digits is 15120, while the sum is 34.

The square root of 1972465 is about 1404.4447301336. Note that the first 3 decimals coincide. The cubic root of 1972465 is about 125.4112322871.

It can be divided in two parts, 197 and 2465, that multiplied together give a triangular number (485605 = T₉₈₅).

The spelling of 1972465 in words is "one million, nine hundred seventy-two thousand, four hundred sixty-five".