27906293 has 8 divisors (see below), whose sum is σ = 28872960. Its totient is φ = 26943840.

The previous prime is 27906287. The next prime is 27906301. The reversal of 27906293 is 39260972.

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 27906293 - 2²⁰ = 26857717 is a prime.

It is a super-2 number, since 2×27906293² = 1557522378003698, 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 (27906223) 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, 18398 + ... + 19856.

It is an arithmetic number, because the mean of its divisors is an integer number (3609120).

Almost surely, 2^27906293 is an apocalyptic number.

It is an amenable number.

27906293 is a deficient number, since it is larger than the sum of its proper divisors (966667).

27906293 is a wasteful number, since it uses less digits than its factorization.

27906293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2107.

The product of its (nonzero) digits is 40824, while the sum is 38.

The square root of 27906293 is about 5282.6407222146. The cubic root of 27906293 is about 303.3197690133.

The spelling of 27906293 in words is "twenty-seven million, nine hundred six thousand, two hundred ninety-three".