7913287 has 8 divisors (see below), whose sum is σ = 8148672. Its totient is φ = 7680000.

The previous prime is 7913261. The next prime is 7913327. The reversal of 7913287 is 7823197.

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

It is a cyclic number.

It is not a de Polignac number, because 7913287 - 2⁷ = 7913159 is a prime.

It is a super-2 number, since 2×7913287² = 125240222288738, 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 (7913237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10162 + ... + 10912.

It is an arithmetic number, because the mean of its divisors is an integer number (1018584).

Almost surely, 2^7913287 is an apocalyptic number.

7913287 is a deficient number, since it is larger than the sum of its proper divisors (235385).

7913287 is a wasteful number, since it uses less digits than its factorization.

7913287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1049.

The product of its digits is 21168, while the sum is 37.

The square root of 7913287 is about 2813.0565227169. The cubic root of 7913287 is about 199.2747650165.

It can be divided in two parts, 79 and 13287, that added together give a triangular number (13366 = T₁₆₃).

The spelling of 7913287 in words is "seven million, nine hundred thirteen thousand, two hundred eighty-seven".