292991 has 4 divisors (see below), whose sum is σ = 297432. Its totient is φ = 288552.

The previous prime is 292979. The next prime is 292993. The reversal of 292991 is 199292.

292991 = T₅₈ + T₅₉ + ... + T₁₂₄.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-292991 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (292993) 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, 2120 + ... + 2253.

It is an arithmetic number, because the mean of its divisors is an integer number (74358).

2²⁹²⁹⁹¹ is an apocalyptic number.

292991 is a deficient number, since it is larger than the sum of its proper divisors (4441).

292991 is an equidigital number, since it uses as much as digits as its factorization.

292991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4440.

The product of its digits is 2916, while the sum is 32.

The square root of 292991 is about 541.2864306446. The cubic root of 292991 is about 66.4178418934.

The spelling of 292991 in words is "two hundred ninety-two thousand, nine hundred ninety-one".