1972469 has 4 divisors (see below), whose sum is σ = 2020620. Its totient is φ = 1924320.

The previous prime is 1972441. The next prime is 1972471. The reversal of 1972469 is 9642791.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 508369 + 1464100 = 713^2 + 1210^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1972469 is a prime.

It is a super-2 number, since 2×1972469² = 7781267911922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1972169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24014 + ... + 24095.

It is an arithmetic number, because the mean of its divisors is an integer number (505155).

2^1972469 is an apocalyptic number.

It is an amenable number.

1972469 is a deficient number, since it is larger than the sum of its proper divisors (48151).

1972469 is an equidigital number, since it uses as much as digits as its factorization.

1972469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48150.

The product of its digits is 27216, while the sum is 38.

The square root of 1972469 is about 1404.4461541832. The cubic root of 1972469 is about 125.4113170617.

The spelling of 1972469 in words is "one million, nine hundred seventy-two thousand, four hundred sixty-nine".