7874869 has 4 divisors (see below), whose sum is σ = 7952940. Its totient is φ = 7796800.

The previous prime is 7874861. The next prime is 7874887. The reversal of 7874869 is 9684787.

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 6563844 + 1311025 = 2562^2 + 1145^2 .

It is a cyclic number.

It is not a de Polignac number, because 7874869 - 2³ = 7874861 is a prime.

It is a super-2 number, since 2×7874869² = 124027123534322, 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 (7874861) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 38884 + ... + 39085.

It is an arithmetic number, because the mean of its divisors is an integer number (1988235).

Almost surely, 2^7874869 is an apocalyptic number.

It is an amenable number.

7874869 is a deficient number, since it is larger than the sum of its proper divisors (78071).

7874869 is a wasteful number, since it uses less digits than its factorization.

7874869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78070.

The product of its digits is 677376, while the sum is 49.

The square root of 7874869 is about 2806.2196991683. The cubic root of 7874869 is about 198.9517572004.

It can be divided in two parts, 78 and 74869, that added together give a palindrome (74947).

The spelling of 7874869 in words is "seven million, eight hundred seventy-four thousand, eight hundred sixty-nine".