1972415 has 8 divisors (see below), whose sum is σ = 2388528. Its totient is φ = 1563520.

The previous prime is 1972381. The next prime is 1972417. The reversal of 1972415 is 5142791.

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

It is a de Polignac number, because none of the positive numbers 2^k-1972415 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1972417) 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 7 ways as a sum of consecutive naturals, for example, 1181 + ... + 2310.

It is an arithmetic number, because the mean of its divisors is an integer number (298566).

2^1972415 is an apocalyptic number.

1972415 is a deficient number, since it is larger than the sum of its proper divisors (416113).

1972415 is a wasteful number, since it uses less digits than its factorization.

1972415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3609.

The product of its digits is 2520, while the sum is 29.

The square root of 1972415 is about 1404.4269293915. The cubic root of 1972415 is about 125.4101725954.

The spelling of 1972415 in words is "one million, nine hundred seventy-two thousand, four hundred fifteen".