27465491 has 2 divisors, whose sum is σ = 27465492. Its totient is φ = 27465490.

The previous prime is 27465481. The next prime is 27465499. The reversal of 27465491 is 19456472.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27465491 - 2¹⁰ = 27464467 is a prime.

It is not a weakly prime, because it can be changed into another prime (27465499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13732745 + 13732746.

It is an arithmetic number, because the mean of its divisors is an integer number (13732746).

Almost surely, 2^27465491 is an apocalyptic number.

27465491 is a deficient number, since it is larger than the sum of its proper divisors (1).

27465491 is an equidigital number, since it uses as much as digits as its factorization.

27465491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60480, while the sum is 38.

The square root of 27465491 is about 5240.7529039252. The cubic root of 27465491 is about 301.7142268383.

It can be divided in two parts, 2746 and 5491, that multiplied together give a triangular number (15078286 = T₅₄₉₁).

The spelling of 27465491 in words is "twenty-seven million, four hundred sixty-five thousand, four hundred ninety-one".