1985497327 has 8 divisors (see below), whose sum is σ = 2167274880. Its totient is φ = 1803932760.

The previous prime is 1985497313. The next prime is 1985497361. The reversal of 1985497327 is 7237945891.

It is a happy number.

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 1985497327 - 2²³ = 1977108719 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1985497027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33427 + ... + 71332.

It is an arithmetic number, because the mean of its divisors is an integer number (270909360).

Almost surely, 2^1985497327 is an apocalyptic number.

1985497327 is a deficient number, since it is larger than the sum of its proper divisors (181777553).

1985497327 is a wasteful number, since it uses less digits than its factorization.

1985497327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106493.

The product of its digits is 3810240, while the sum is 55.

The square root of 1985497327 is about 44558.9197243380. The cubic root of 1985497327 is about 1256.8682885960.

The spelling of 1985497327 in words is "one billion, nine hundred eighty-five million, four hundred ninety-seven thousand, three hundred twenty-seven".