8315291 has 4 divisors (see below), whose sum is σ = 8393112. Its totient is φ = 8237472.

The previous prime is 8315273. The next prime is 8315317. The reversal of 8315291 is 1925138.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1925138 = 2 ⋅962569.

It is a cyclic number.

It is not a de Polignac number, because 8315291 - 2¹⁸ = 8053147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8315201) 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, 38750 + ... + 38963.

It is an arithmetic number, because the mean of its divisors is an integer number (2098278).

Almost surely, 2^8315291 is an apocalyptic number.

8315291 is a deficient number, since it is larger than the sum of its proper divisors (77821).

8315291 is a wasteful number, since it uses less digits than its factorization.

8315291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77820.

The product of its digits is 2160, while the sum is 29.

The square root of 8315291 is about 2883.6246288309. The cubic root of 8315291 is about 202.5936446421.

The spelling of 8315291 in words is "eight million, three hundred fifteen thousand, two hundred ninety-one".